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copyleftdev/README.md
copyleftdev

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Note

I build sharp, single-purpose tools — mostly in Rust and Zig, sometimes in Go or Python. Security scanners, developer utilities, AI infrastructure, and the occasional absurd experiment. On GitHub since 2008. Everything ships.

gitmesh.app · don@codetestcode.io · linkedin


About

I'm a systems-level software engineer focused on security tooling, developer infrastructure, and AI-native systems. Most of my work lives at the intersection of offensive security, protocol engineering, and CLI design — shipping single-binary tools with minimal dependencies that solve one problem well.

  • Security research — network beacon detection, distributed scanners, web fuzzers, OSINT frameworks, and supply-chain forensics
  • Developer tools — self-hosted tunnel servers, webhook inspectors, deterministic crawlers, and CI/CD automation
  • AI infrastructure — Model Context Protocol (MCP) servers, multi-agent coordination protocols, and DSLs for composable AI systems
  • Systems programming — Rust-first, with production work in Zig, Go, Python, TypeScript, and Nim
  • Open source — 40+ original public tools, all designed to be auditable and forkable

I care about software that is small, correct, and observable. If it can't be deployed with scp and run without a runtime, it's probably too complicated.


Languages & Tools

RustZigGoPythonTypeScriptNimShellDockerPostgreSQLRedisSQLite

live github metrics

Recently Shipped

RepositoryDescriptionLangLast push
leet-indexsuper top secret$\texttt{JavaScript}$2026-08-06
poise-rsComposable, rigorously verified load-balancing primitives for Rust$\texttt{Rust}$2026-08-05
vulngraph-dataDeterministic data pipeline for VulnGraph — ingests 11 vulnerability sources, publishes…$\texttt{Rust}$2026-08-05
dev-portal-correctlySpecification-first developer portal: modular OpenAPI 3.1 + AsyncAPI 3.1 sharing one domain…$\texttt{JavaScript}$2026-08-05
kilo-dataOpen threat-intelligence and IP-reputation ETL for phishing and abuse screening, with BGP and…$\texttt{Rust}$2026-08-04
oxide-ciA modern, extensible, high-performance CI/CD engine written in Rust.$\texttt{Rust}$2026-08-03

This section and the metrics panel above are regenerated nightly by a stdlib-only Python script querying the GitHub API — no third-party stats services, nothing to go stale.


Selected Repositories

Security & Detection

RepositoryDescriptionLanguage
floqC2 beacon detection via Floquet spectral analysis — pcap, live capture, or OTLP; 274 KB binary$\texttt{Zig}$
anomalyxContract-first anomaly detection across ~30 formats — logs, pcap, OTLP; deterministic CLI$\texttt{Rust}$
fattDistributed async scanner for exposed files across millions of domains$\texttt{Rust}$
fufFast next-generation web fuzzer$\texttt{Rust}$
robin-smeshDecentralized dark web OSINT framework — Tor crawling, artifact extraction$\texttt{Rust}$
mini-shai-hulud-dragnetForensic dataset + live dashboard for the 2026 npm supply-chain worm — 1,117 dropbox repos, 47 IOCs$\texttt{Shell}$

Systems & Developer Tools

RepositoryDescriptionLanguage
tailxLive system cognition engine — tail reimagined: anomalies, traces, structured JSON; 144 KB$\texttt{Zig}$
coelacanthAI-first Unix primitives, clean-room reimplemented under one machine-checkable contract$\texttt{Zig}$
palimpsestDeterministic crawl kernel — same seed, identical crawl; JA3/JA4 impersonation, WARC++$\texttt{Rust}$
hook-binSingle-binary webhook inbox — embedded SQLite, live dashboard, zero deps$\texttt{Rust}$
zgrokSelf-hosted ngrok alternative built on Tokio$\texttt{Rust}$
coraMulti-pattern fixed-string matcher — Aho-Corasick + SIMD on mmap'd files, NDJSON output$\texttt{Rust}$

AI & Agent Infrastructure

RepositoryDescriptionLanguage
smesh-rustDecentralized coordination protocol for multi-agent LLM systems — QUIC P2P, sub-µs signal diffusion$\texttt{Rust}$
vajraDeterministic semantic reduction engine for structured data — break noise, preserve truth$\texttt{Rust}$
agent-calcAI-native exact calculator — typed JSON math, symbolic reasoning, mutation-tested$\texttt{Rust}$
sigmosDSL for defining AI-native, composable, reactive systems$\texttt{Rust}$
mcp-flowWebTransport binding for MCP — QUIC streams, no head-of-line blocking$\texttt{Multi}$
toon-zigTOON (Token-Oriented Object Notation) — 30–60% token reduction for LLMs$\texttt{Zig}$

Education & the Absurd

RepositoryDescriptionLanguage
humanlangToken bucket rate limiter implemented in 37 languages (1957–2016)$\texttt{Multi}$
git-archaeology-labHands-on exercises for forgotten git commands — crafted history, real bugs, real bisect targets$\texttt{Shell}$
gitfoo_episode_1Git Black Belt Masterclass — the other 90% of git most devs never use$\texttt{Python}$
OverHelloWorldIntentionally over-engineered Hello World — DDD, CQRS, event sourcing, telemetry$\texttt{Go}$
fafoaasFAFO as a Service — spec-first engineering masterclass; AsyncAPI 3 + MCP, 98/98 mutation score$\texttt{TS}$
tip-to-tip-efficiencyMathematically serious crate for a deeply unserious Silicon Valley efficiency empire$\texttt{Rust}$

GitRoll Profile Badgecontribution snake

Pinned Loading

  1. smesh-rustsmesh-rustPublic

    High-performance decentralized coordination protocol for multi-agent LLM systems. Plant-inspired signal diffusion with sub-microsecond processing, QUIC P2P networking, and unified LLM backends (Oll…

    Rust 1

  2. tailxtailxPublic

    Live system cognition engine. Reimagines tail from "show me lines" to "what's happening, what matters, and why?" Auto-detects log formats, groups patterns, detects anomalies, reconstructs traces, o…

    Zig 3

  3. agent-calcagent-calcPublic

    AI-native exact calculator and contract-first Rust CLI for typed JSON math, symbolic reasoning, property tests, and mutation-tested agent workflows.

    Rust 1

  4. anomalyxanomalyxPublic

    Contract-first anomaly detection across ~30 formats — logs, security telemetry (syslog, CEF/LEEF, EVTX, Suricata EVE, osquery, CloudTrail), network (pcap, NetFlow, DNS), observability (OTLP, Promet…

    Rust 2 1

  5. vajravajraPublic

    Break noise. Preserve truth. A deterministic semantic reduction engine for structured data — JSON, YAML, CSV, NDJSON, Markdown, PDF. Fingerprinting, entropy, anomaly detection, schema drift, cluste…

    Rust 1

  6. symgliphsymgliphPublic

    SCGP reference implementation in Rust: compile large codebases into verified semantic graphs, deterministic glyphs, and token-budgeted AI context.

    Rust 1