uv fork runs dev sessions ~33% faster with 40-60% less disk, author still unsure it's enough

mitsuhiko · x · 2026-10-04

Charlie Marsh (creator of ruff/uv) says he has a fork of the toolchain that replays development sessions 33% faster across real commands while using 40-60% less disk space — but he's still not sure that improvement is enough, hinting at deeper performance bottlenecks worth exploring.

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