fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474

Closed
#495
Closed
fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
#495

Description

@chuks-qua
chuks-qua
opened on Mar 8, 2026

What

bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.

Error

PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

Why

On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.

This happens when:

  • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
  • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)

When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.

Fix

Add shell: true on Windows to ChildProcess.make at cli.ts:131:

yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);

The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.

Steps to Reproduce

  1. Install Bun on Windows (via npm, Scoop, or standalone installer)
  2. Clone the repo
  3. Run bun install
  4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
  5. Run bun run dev:desktop
  6. Observe the PlatformError: NotFound crash

Environment

  • Windows 11 Pro (10.0.22631)
  • Bun 1.x (installed via standalone installer, creates .cmd shims)
  • Node.js (.cmd shim behavior is standard on Windows)

Activity

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      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
       blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
      Closed
      #495
      Closed
      fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
      #495
      Description
      @chuks-qua
      chuks-qua
      opened on Mar 8, 2026
      What
      bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
      Error
      PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

      Why
      On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
      This happens when:
      • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
      • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
      When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
      Fix
      Add shell: true on Windows to ChildProcess.make at cli.ts:131:
      yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
      The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
      Steps to Reproduce
      1. Install Bun on Windows (via npm, Scoop, or standalone installer)
      2. Clone the repo
      3. Run bun install
      4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
      5. Run bun run dev:desktop
      6. Observe the PlatformError: NotFound crash
      Environment
      • Windows 11 Pro (10.0.22631)
      • Bun 1.x (installed via standalone installer, creates .cmd shims)
      • Node.js (.cmd shim behavior is standard on Windows)
      Activity
      Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
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          No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
          Closed
          #495
          Closed
          fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
          #495
          Description
          @chuks-qua
          chuks-qua
          opened on Mar 8, 2026
          What
          bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
          Error
          PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

          Why
          On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
          This happens when:
          • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
          • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
          When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
          Fix
          Add shell: true on Windows to ChildProcess.make at cli.ts:131:
          yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
          The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
          Steps to Reproduce
          1. Install Bun on Windows (via npm, Scoop, or standalone installer)
          2. Clone the repo
          3. Run bun install
          4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
          5. Run bun run dev:desktop
          6. Observe the PlatformError: NotFound crash
          Environment
          • Windows 11 Pro (10.0.22631)
          • Bun 1.x (installed via standalone installer, creates .cmd shims)
          • Node.js (.cmd shim behavior is standard on Windows)
          Activity
          Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
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              Relationships
              None yet
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              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
              Closed
              #495
              Closed
              fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
              #495
              Description
              @chuks-qua
              chuks-qua
              opened on Mar 8, 2026
              What
              bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
              Error
              PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

              Why
              On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
              This happens when:
              • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
              • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
              When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
              Fix
              Add shell: true on Windows to ChildProcess.make at cli.ts:131:
              yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
              The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
              Steps to Reproduce
              1. Install Bun on Windows (via npm, Scoop, or standalone installer)
              2. Clone the repo
              3. Run bun install
              4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
              5. Run bun run dev:desktop
              6. Observe the PlatformError: NotFound crash
              Environment
              • Windows 11 Pro (10.0.22631)
              • Bun 1.x (installed via standalone installer, creates .cmd shims)
              • Node.js (.cmd shim behavior is standard on Windows)
              Activity
              Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
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                No type
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                  No milestone
                  Relationships
                  None yet
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                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
                  Closed
                  #495
                  Closed
                  fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
                  #495
                  Description
                  @chuks-qua
                  chuks-qua
                  opened on Mar 8, 2026
                  What
                  bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
                  Error
                  PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

                  Why
                  On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
                  This happens when:
                  • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
                  • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
                  When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
                  Fix
                  Add shell: true on Windows to ChildProcess.make at cli.ts:131:
                  yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
                  The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
                  Steps to Reproduce
                  1. Install Bun on Windows (via npm, Scoop, or standalone installer)
                  2. Clone the repo
                  3. Run bun install
                  4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
                  5. Run bun run dev:desktop
                  6. Observe the PlatformError: NotFound crash
                  Environment
                  • Windows 11 Pro (10.0.22631)
                  • Bun 1.x (installed via standalone installer, creates .cmd shims)
                  • Node.js (.cmd shim behavior is standard on Windows)
                  Activity
                  Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
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                      None yet
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                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
                      Closed
                      #495
                      Closed
                      fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
                      #495
                      Description
                      @chuks-qua
                      chuks-qua
                      opened on Mar 8, 2026
                      What
                      bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
                      Error
                      PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

                      Why
                      On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
                      This happens when:
                      • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
                      • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
                      When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
                      Fix
                      Add shell: true on Windows to ChildProcess.make at cli.ts:131:
                      yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
                      The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
                      Steps to Reproduce
                      1. Install Bun on Windows (via npm, Scoop, or standalone installer)
                      2. Clone the repo
                      3. Run bun install
                      4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
                      5. Run bun run dev:desktop
                      6. Observe the PlatformError: NotFound crash
                      Environment
                      • Windows 11 Pro (10.0.22631)
                      • Bun 1.x (installed via standalone installer, creates .cmd shims)
                      • Node.js (.cmd shim behavior is standard on Windows)
                      Activity
                      Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
                          Closed
                          #495
                          Closed
                          fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
                          #495
                          Description
                          @chuks-qua
                          chuks-qua
                          opened on Mar 8, 2026
                          What
                          bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
                          Error
                          PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

                          Why
                          On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
                          This happens when:
                          • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
                          • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
                          When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
                          Fix
                          Add shell: true on Windows to ChildProcess.make at cli.ts:131:
                          yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
                          The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
                          Steps to Reproduce
                          1. Install Bun on Windows (via npm, Scoop, or standalone installer)
                          2. Clone the repo
                          3. Run bun install
                          4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
                          5. Run bun run dev:desktop
                          6. Observe the PlatformError: NotFound crash
                          Environment
                          • Windows 11 Pro (10.0.22631)
                          • Bun 1.x (installed via standalone installer, creates .cmd shims)
                          • Node.js (.cmd shim behavior is standard on Windows)
                          Activity
                          Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
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                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
                            No labels
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                            No projects
                              Milestone
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                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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                              fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims #474
                              Closed
                              #495
                              Closed
                              fix: bun run dev:desktop fails on Windows — ChildProcess.spawn cannot resolve .cmd shims#474
                              #495
                              Description
                              @chuks-qua
                              chuks-qua
                              opened on Mar 8, 2026
                              What
                              bun run dev:desktop fails on Windows with a PlatformError: NotFound when spawning bun tsdown. The build step in apps/server/scripts/cli.ts never completes, so the desktop app cannot start.
                              Error
                              PlatformError: NotFound: ChildProcess.spawn (bun tsdown)

                              Why
                              On Windows, bun is installed as bun.cmd (a shell wrapper). Node's child_process.spawn cannot resolve .cmd extensions without shell: true. The current code at cli.ts:131 calls ChildProcess.make without setting shell, so spawn looks for a literal bun executable and fails.
                              This happens when:
                              • The user installs Bun from a different source than the default (e.g., via npm i -g bun, Scoop, or a standalone installer that creates .cmd shims)
                              • There is no Turborepo cache hit for the tsdown build step (e.g., a fresh clone, cleared cache, or a git worktree)
                              When Turbo has a cached build, the bun tsdown spawn is skipped entirely, which masks the bug.
                              Fix
                              Add shell: true on Windows to ChildProcess.make at cli.ts:131:
                              yield*runCommand(ChildProcess.make({cwd: serverDir,stdout: config.verbose ? "inherit" : "ignore",stderr: "inherit",shell: process.platform==="win32",})`bun tsdown`,);
                              The same pattern may apply to the npm call at cli.ts:224, since npm is also a .cmd shim on Windows.
                              Steps to Reproduce
                              1. Install Bun on Windows (via npm, Scoop, or standalone installer)
                              2. Clone the repo
                              3. Run bun install
                              4. Clear Turbo cache or use a fresh worktree (so no cached build exists)
                              5. Run bun run dev:desktop
                              6. Observe the PlatformError: NotFound crash
                              Environment
                              • Windows 11 Pro (10.0.22631)
                              • Bun 1.x (installed via standalone installer, creates .cmd shims)
                              • Node.js (.cmd shim behavior is standard on Windows)
                              Activity
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