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
4377 commits, 674 PRs, and 231 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-checkertest(e2e): cover a sign-flip save and its formula14h
JP-Ellis/borrow-checkerdocs: show budget revisions in the §7.1 schema15h
JP-Ellis/borrow-checkerfeat(bc-ui): accept expressions in the new budget form15h
JP-Ellis/borrow-checkertest(bc-ui): reach the tag check in account_and_tag15h
JP-Ellis/borrow-checkerrefactor(bc-ui): share budget form dropdown keys15h
JP-Ellis/borrow-checkerfix(bc-core): no verdict on future over-allocation15h
Latest issues & PRs
JP-Ellis/borrow-checker[PR · open]
docs(gui): correct three specs the budget work outdated12hJP-Ellis/borrow-checker[issue · open]
Stale bc.sidebar.expanded collapses the sidebar in accounts-* e2e specs12hJP-Ellis/borrow-checker[issue · open]
Budget tree shows no unbudgeted spend under Asset/Liability roots12hJP-Ellis/borrow-checker[issue · open]
Budget envelopes: consider an exclusive (residual) counting mode12hSelected 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