fix(server): lease Darwin server ownership - #57

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lastobelus merged 2 commits into
lastcode/mainfrom
lastcode/server-owner-lease
Aug 22, 2026
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fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
lastcode/mainfrom
lastcode/server-owner-lease

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@lastobeluslastobelus commented Aug 22, 2026

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Part of #39.

On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.

This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.

Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.

Built with GPT-5.4 in the Codex harness.

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lastobelus commented Aug 22, 2026

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@codex review

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💡 Codex Review

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Reviewed commit:a8202ac657

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Comment threadapps/server/src/server.ts Outdated
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Codex Review: Didn't find any major issues. You're on a roll.

Reviewed commit:761ffbc447

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

@lastobelus
lastobelus merged commit 72f65ac into lastcode/mainAug 22, 2026
@lastobelus
lastobelus deleted the lastcode/server-owner-lease branch August 22, 2026 06:42
lastobelus added a commit that referenced this pull request Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus mentioned this pull request Aug 27, 2026
Open
lastobelus added a commit that referenced this pull request Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit that referenced this pull request Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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fix(server): lease Darwin server ownership - #57
Merged
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
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Aug 22, 2026

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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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fix(server): lease Darwin server ownership - #57
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lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
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lastcode/server-owner-lease
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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
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Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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fix(server): lease Darwin server ownership - #57
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lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
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lastcode/server-owner-lease
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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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fix(server): lease Darwin server ownership - #57
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lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
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lastcode/server-owner-lease
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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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if (btn && !btn.classList.contains('activated')) {
btn.click();
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// Try immediately
tryTheater();
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setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
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try {
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var __re = new RegExp('^' + ".*" + '

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fix(server): lease Darwin server ownership - #57
Merged
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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fix(server): lease Darwin server ownership - #57
Merged
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
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Aug 22, 2026

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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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filter: none !important;
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/* Fix common UI elements */
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filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
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}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
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if (e.altKey && e.shiftKey && e.key === 'D') {
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fix(server): lease Darwin server ownership - #57
Merged
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
Aug 22, 2026
Merged
fix(server): lease Darwin server ownership#57
lastobelus merged 2 commits into
lastcode/mainfrom 
lastcode/server-owner-lease
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Aug 22, 2026

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Part of #39.
On macOS, the desktop client and a headless launchd service could otherwise start separate servers against the same LastCode home. Concurrent ownership risks conflicting state writers and makes the service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base directory. Server startup acquires the lease before constructing the runtime, reports a clear error when another owner holds it, rejects unsafe lock paths, and releases ownership with the server scope. Other platforms retain their existing startup behavior rather than gaining a weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition, canonicalized paths, symlink rejection, invalid lock paths, and the non-Darwin boundary. The rebased patch also passed server typechecking, targeted lint/format checks, and the normal four-stage LastCode quick-CI push guard.
Built with GPT-5.4 in the Codex harness.
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Aug 22, 2026

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💡 Codex Review
Here are some automated review suggestions for this pull request.
Reviewed commit:a8202ac657
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
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Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
Comment threadapps/server/src/server.ts
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Codex Review: Didn't find any major issues. You're on a roll.
Reviewed commit:761ffbc447
ℹ️ About Codex in GitHub
Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you
  • Open a pull request for review
  • Mark a draft as ready
  • Comment "@codex review".
If Codex has suggestions, it will comment; otherwise it will react with 👍.
Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".
@lastobelus
lastobelus
merged commit 72f65ac
into
lastcode/mainAug 22, 2026
@lastobelus
lastobelus
deleted the

lastcode/server-owner-lease

branch
August 22, 2026 06:42
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
1844c43
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
7800730
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
28b6ea7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 22, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
07938cc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
0680e85
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 23, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
81f81e3
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
43f05dd
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 24, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
6d2f8bc
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
@lastobeluslastobelus
mentioned this pull request
Aug 27, 2026

Open

lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
684943b
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
96c0d97
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
c598311
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
854eb54
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 28, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
5a5929e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
9a0f55e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8a25cb7
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 29, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
87ef058
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 30, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
3604ad5
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Aug 31, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
08174c0
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
8e6810e
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
081d258
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
fa21a4d
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
379965c
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
a01a742
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
2c25816
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
14bfe71
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
lastobelus added a commit
that referenced
this pull request
Sep 1, 2026
@lastobelus
fix(server): lease Darwin server ownership (#57)
84f4a24
Part of #39.
On macOS, the desktop client and a headless launchd service could
otherwise start separate servers against the same LastCode home.
Concurrent ownership risks conflicting state writers and makes the
service transition unsafe.
This adds a Darwin kernel-backed exclusive lease for each server base
directory. Server startup acquires the lease before constructing the
runtime, reports a clear error when another owner holds it, rejects
unsafe lock paths, and releases ownership with the server scope. Other
platforms retain their existing startup behavior rather than gaining a
weaker PID-file fallback.
Focused coverage exercises contention, release and reacquisition,
canonicalized paths, symlink rejection, invalid lock paths, and the
non-Darwin boundary. The rebased patch also passed server typechecking,
targeted lint/format checks, and the normal four-stage LastCode quick-CI
push guard.
Built with GPT-5.4 in the Codex harness.
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