Mecha LLC — data integrity engineering. Custom software, AI consulting for law/finance, and contract code review.

a full binary file format validator for over 100 (EDIT: now over 200) different filetypes, written in Zig with frontier AI assistance

My dotfiles.

Cleanroom spec-complete TIFF reader (and eventually writer) in pure Zig

Document indexing and semantic search for .md, .docx, .epub, .pdf, .doc, .rtf — Zig core + C FFI + hybrid vector/lexical search

A serializer/deserializer for working directly with binary data in a way that is still human-readable (ASCII -> ASCII, context-sensitive chars -> similar-looking UTF-8, control chars -> semanticall…

Zig 0.16-compatible fork of vrischmann/zig-sqlite (forked because upstream stalled on 0.15.1)

Some refinements to Racket syntax to add: 1) Significant tab-indentation to reduce nested-parens hell; 2) `~function_name` infixes it `(3 ~+ 5) ;; 8`; 3) hash-map `{}` and vector `[]` immutable lit…

A real-estate listing site built in Elixir with Phoenix and Postgres.

C FFI for speakrs speaker diarization — PCM samples in, JSON speaker turns out. Python/ctypes-ready, Nix-first packaging (zero build-time downloads).

A stateful way to retain an uncluttered project tree view in the terminal with some collapsed or hidden files/directories. You can also annotate specific files (purpose, etc.) Can be useful for LLM…

Prevent yourself from getting burned by `rm -rf`/`sudo rm -rf` style mistakes by diverting those files to the Trash instead.

Cleanroom JPEG 2000 (T.800) decoder in Zig with a C FFI

Spec-complete JPEG family decoder library in Zig (baseline / progressive / lossless / arithmetic / JPEG-LS / JPEG 2000)

LLM-driven per-file security review: a pattern and a Bash tool that runs language-specific security audits (Zig/Elixir/Python/JS/Rust/C/C++ today, OWASP-generic fallback) via claude/codex/gemini CLIs

nimble for Nix/macOS with working TLS — fixes the openssl dlopen/segfault on nimble refresh/install

A cleanroom reimplementation of the par2 error-correction algorithm, library and cli in Zig, based only on publicly-available specs (NOT its source code), and with a more permissive license, a C AB…

RFC 9562 UUIDv7 generator in LuaJIT: time-ordered, sortable, monotonic counter

Search Claude Code/Gemini/Codex conversation history with semantic + lexical search

BLAR archive format — built on BLIP

Semantic code search and targeted edits for local repositories, all done locally (no cloud).

An implementation of the Mac Classic "Compact Pro" compression archive spec in Zig, with C FFI and C CLI, for Mac, Linux and Windows, enhanced with cross-platform metadata support.

Cross-process atomic counters in LuaJIT: filesystem, POSIX shm, and System V IPC backends with per-OS tradeoffs

BLIP: Byte Length Integer Prefix - a variable-length integer encoding optimized for CPU-friendly decoding that includes endianness, as well as a hierarchical binary container format based on it cal…

C0: A hierarchical binary data stream format designed for human-readable UTF-8 environments

Unified CLI random number generator in LuaJIT: multiple distributions, true + deterministic, stdin ops, multiple output formats

Firefox password decryptor — single static binary, pure Zig crypto, no NSS dependency