Projects

Things I've built, still standing.

A small index. Each item links to a write-up, the README, or — for the academic ones — the paper.

1.0k: Total stars

196: forks

400+: citations

2015: open source since

The stack

rustpythonlatextikznixshell

Index

repokindsummary★status

pact-pythonOSS · library

Python bindings for Pact, rebuilt over a Rust FFI core. The version most pact-python users actually reach for.rust · python · ffi

676● active

tikz-feynmanOSS · LaTeX

A LaTeX package for typesetting Feynman diagrams with TikZ; adopted across particle physics with 400+ academic citations.tex · tikz

158● maintained

rust-skiplistOSS · library

Skiplist data structure implementation in Rust.rust

111● maintained

mathematica-notebook-filterOSS · tool

Filters Mathematica notebooks for clean version-control diffs.rust

60● maintained

simpler-wickOSS · LaTeX

LaTeX macros for Wick contractions in quantum field theory.tex · tikz

23● maintained

boltzmann-solverresearch · numerics

Solver for highly-coupled Boltzmann equations with rates spanning many decades; custom quadrature.rust

1● archived

dotfilespersonal · glue

Opinionated dotfiles: nix flake, fish prompt, helix config, backup scripts.nix · shell

2● maintained

jpellis.mepersonal · site

This site, rebuilt in Astro on Cloudflare Workers.typescript · astro

0● maintained

borrow-checkerpersonal · app

Personal finance app for tracking accounts, spending, and cashflow — named for the compiler feature that stops you spending twice.rust

1● wip

amber-apipersonal · library

Rust client for Amber Electric's real-time energy pricing API.rust

3● maintained

enphase-apipersonal · library

Rust client for the Enphase solar monitoring API.rust

1● maintained

repo-managepersonal · tool

Convenience CLI for applying consistent settings and CI workflows across a fleet of personal repositories.python

1● maintained

azure data acceleratorconsulting · internal

Modular, configuration-driven accelerator for deploying standardised Azure data-platform infrastructure; used as an internal KPMG template.azure · bicep · python

—● shipped

pactflow-aiwork · internal

AI-powered platform that automates the creation and maintenance of contract tests, integrating into existing development tools to save teams up to 60% of manual testing time.rust · python · ai

—● active

Open source

Beyond named projects, I make regular contributions across the open-source ecosystem — bug fixes, small features, and documentation wherever I use the tools.

fastapi 99.7k★ · home-assistant 88.0k★ · mise 30.2k★ · home-assistant.io 9.5k★ · prek 7.9k★ · openllmetry 7.2k★ · hatch 7.2k★ · pyinfra 5.9k★ · vscode-python 4.6k★ · schemastore 3.8k★ · pact-ruby 2.2k★ · dotter 2.0k★ · pact-js 1.8k★ · pact-jvm 1.1k★ · pact-go 945★ · pact-net 926★ · pact_broker 744★ · packaging 736★ · pact-js-core 152★ · stylance-rs 149★· and others