Essays, engineering notes, and release notes from the people building Heddle. For how things work, read the docs.
15 Jun 2026 · The Heddle team · 5 min read · engineering, performance, git
Sley is a Rust Git engine built to be embedded. Against the real git binary it runs the everyday commands faster: log at half the time on every repo, commit and the mid-size reads in half, with a lighter memory footprint at every repo size. Every result is checked against Git's own output. A benchmark, honestly.
9 May 2026 · The Heddle team · 4 min read · essay, git, agents
Cleaned-up history was always a story we told reviewers. Humans curated the messy middle out before it ever became a commit. Agents don't. The unit of work has to change.