Hello, again
I codify contracts between systems for a living, in Rust and Python. I once spent five years chasing where the antimatter went.
Senior software engineer at PactFlow (SmartBear). I help lead the open-source Pact Foundation and maintainpact-python; I also wrote tikz-feynman,rust-skiplist, and more.
Previously: data and cloud engineering at KPMG, and doctoral research in theoretical particle physics.
The year in code
5323 commits, 829 PRs, and 276 issues across 39 repositories.
Most of what I make is open. Each square below is one day of my GitHub contributions over the past year.
Latest commits
JP-Ellis/borrow-checkerdocs(claude): fix off-path work in passing before deferring it17h
JP-Ellis/borrow-checkerdocs(gui): describe the dev command Tauri actually runs17h
JP-Ellis/amber-apichore(ci): drop the rust beta test job18h
JP-Ellis/amber-apichore: load the dev environment through mise18h
JP-Ellis/enphase-apistyle: move [features] ahead of the dependency tables18h
JP-Ellis/amber-apifix(deps): enable bon and tracing only with std18h
Latest issues & PRs
JP-Ellis/borrow-checker[PR · merged]
docs: fix off-path work in passing, and correct the Tauri dev command17hJP-Ellis/dotfiles[PR · merged]
feat(zsh): force OSC 8 hyperlinks in Rex18hJP-Ellis/amber-api[PR · merged]
chore: replace direnv with mise env and drop rust beta CI18hJP-Ellis/rust-skiplist[PR · open]
chore(deps): update rust toolchain to 1.10018hSelected projects
pact-pythonOSS · libraryPython bindings for Pact, rebuilt over a Rust FFI core. Downloaded over 1.3 million times a month.↗ github
tikz-feynmanOSS · LaTeXA LaTeX package for typesetting Feynman diagrams with TikZ; adopted across particle physics with 400+ academic citations.↗ github
↗ All projects