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Achievements

Achievement: Pull Sharkx4Achievement: Pair Extraordinairex4Achievement: StarstruckAchievement: YOLOAchievement: Public SponsorAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pull Sharkx4Achievement: Pair Extraordinairex4Achievement: StarstruckAchievement: YOLOAchievement: Public SponsorAchievement: QuickdrawAchievement: Arctic Code Vault Contributor

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copyleftdev/README.md
copyleftdev

Note

I build sharp, single-purpose tools — mostly in Rust, sometimes in Go or Zig. Security scanners, developer utilities, AI infrastructure, and the occasional absurd experiment. 560+ public repos. 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 — building distributed scanners, web fuzzers, OSINT frameworks, and adversarial evaluation harnesses for LLMs
  • Developer tools — self-hosted tunnel servers, webhook inspectors, credential managers, and CI/CD automation
  • AI infrastructure — Model Context Protocol (MCP) servers, sampling policy engines, and DSLs for composable AI systems
  • Systems programming — Rust-first, with production work in Go, Zig, Python, TypeScript, and Nim
  • Open source — 560+ public repositories, all original tools 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

Rust Go Zig Python TypeScript Nim Shell Docker PostgreSQL Redis SQLite

Selected Repositories

Security & Offensive

Repository Description Language
fatt Distributed async scanner for exposed files across millions of domains $\texttt{Rust}$
fuf Fast next-generation web fuzzer $\texttt{Rust}$
blsmesh Distributed adversarial behavioral security evaluation for LLMs $\texttt{Rust}$
robin-smesh Decentralized dark web OSINT framework — Tor crawling, artifact extraction $\texttt{Rust}$
thinksec Curated collection of security skill files for expert workflows $\texttt{md}$
chrono-dance-showcase Temporal threat detection engine for security analysts —

Developer Tools

Repository Description Language
hook-bin Single-binary webhook inbox — embedded SQLite, live dashboard, zero deps $\texttt{Rust}$
zgrok Self-hosted ngrok alternative built on Tokio $\texttt{Rust}$
corey CLI for managing GitHub credentials, secrets, and variables $\texttt{Zig}$
print-service-go HTML-to-PDF conversion service with advanced rendering $\texttt{Go}$
workflow-showcase Minimal app showcasing powerful GitHub Actions CI/CD patterns $\texttt{YAML}$
pdfvec High-performance PDF text extraction for vectorization pipelines —

AI & MCP Infrastructure

Repository Description Language
sigmos DSL for defining AI-native, composable, reactive systems $\texttt{Rust}$
mcp-flow WebTransport binding for MCP — QUIC streams, no head-of-line blocking $\texttt{Multi}$
nektor AI-native sampling policy engine for Honeycomb Refinery $\texttt{Rust}$
polymcp MCP server for the Polygon.io financial data API $\texttt{Rust}$
sk1llz Legendary engineer philosophies encoded as Anthropic-compatible Skills $\texttt{md}$

Languages, Formats & Education

Repository Description Language
humanlang Token bucket rate limiter implemented in 37 languages (1957–2016) $\texttt{Multi}$
gen3s1s Synthetic world generator compiled from declarative Genesis files $\texttt{Rust}$
kirsch Content fingerprinting & provenance engine — CLIP ViT-B/32, ONNX $\texttt{Rust}$
nimtrace Zero-cost structured tracing framework for Nim $\texttt{Nim}$
toon-zig TOON (Token-Oriented Object Notation) — 30-60% token reduction for LLMs $\texttt{Zig}$
gitfoo_episode_1 Git Black Belt Masterclass — the other 90% of git most devs never use $\texttt{Python}$
OverHelloWorld Intentionally over-engineered Hello World — DDD, CQRS, event sourcing, telemetry $\texttt{Go}$
vibe-rules-collection Curated rules for AI coding assistants1 $\texttt{md}$

Footnotes

  1. 45 stars — the most-starred original repo in the collection. ↩

Pinned Loading

  1. sigmos sigmos Public

    A next-generation Domain-Specific Language (DSL) designed to define, orchestrate, and execute AI-native, composable, reactive, and multimodal systems.

    Rust 1

  2. allman allman Public

    High-performance MCP agent mail server — lock-free message routing, NRT search, Git audit trail. Built in Rust.

    Rust 2

  3. nektor nektor Public

    AI-native sampling policy engine for Honeycomb Refinery. Claude-powered policy generation with deterministic verification.

    Rust

  4. zgrok zgrok Public

    Self-hosted ngrok alternative in Rust. Development in progress - check out the issues for detailed specs.

    Rust 1