Outside of Worklane, I like to build cli and server libraries.
Some open source tools I've built:

Collie

More capable and faster approach for code search, built for agents and humans, optimised for projects.

Horsies

PostgreSQL-backed task queue and workflow engine for Python.

Horsies Rust

Rust port of Horsies.

Syce

The shared monitoring tool for distributed queue and workflow engine.

WCAG Doctor

WCAG 2.1 color contrast compliance checker. Statically analyzes design tokens and React/Next.js components against AA and AAA thresholds without running the app.

Persistent Terminals

VS Code and Cursor extension that automatically launches preconfigured terminals when you open your workspace. Custom names, colors, and startup commands.

Claude Ask-for-Review

Let your Claude get help from another Claude (or Codex).

Unicode Animations

18 pre-built Unicode braille spinner animations for CLI apps.