Loopline

Started as a personal itch — I was tired of rerunning a full test suite after changing one file. Loopline watches the filesystem, builds a dependency graph of what actually depends on what, and only reruns the slice of work that changed.

• Dependency graph diffing cut my own build loop from 40s to under 3s.
• Config is a twelve-line TOML file — no plugin system, on purpose.
• Currently at 190 stars and four outside contributors.