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
4272 commits, 662 PRs, and 223 issues across 34 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(e2e): fold test layout into selector rules15h
JP-Ellis/borrow-checkerdocs: trim the root CLAUDE.md to what tools miss15h
JP-Ellis/borrow-checkerdocs(bc-ui): trim CLAUDE.md to what tools miss15h
JP-Ellis/borrow-checkerdocs(gui): correct style paths and SCSS imports15h
JP-Ellis/dotfilesrefactor(syncthing): include the shared regenerable ignore list15h
JP-Ellis/dotfilesfeat(rustic): exclude through ~/.rusticignore instead of .gitignore15h
Latest issues & PRs
JP-Ellis/borrow-checker[issue · open]
Account dashboard remounts on every save12hJP-Ellis/borrow-checker[issue · open]
Register forgets its scroll position when returning to an account12hJP-Ellis/borrow-checker[PR · merged]
docs: trim CLAUDE.md files to what tools miss15hJP-Ellis/dotfiles[PR · merged]
feat: share one ignore list between rustic and Syncthing15hSelected 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