- Sources: Ziggit announcement, HN 49033099
- Summary: A developer posting as jazzzooo published Buz on 2026-07-24, a work-in-progress fork of Bun taken from the codebase before Bun's rewrite from Zig to Rust. Buz targets feature parity with Bun 1.4.0, builds against a lightly patched Zig master, moves the whole build graph including vendored JavaScriptCore into
build.zig, removes over 11,000 lines of dead code, and claims sub-one-second incremental builds. It is the second such fork after Cruller, which the author says they had not examined. - Why it matters: Two independent forks continuing Bun on Zig show sustained interest in the pre-Rust runtime and in Zig's incremental-build story, though neither is production-proven.
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