Bun - GoKawiil

Developer builds buildprof tool to investigate Bun's Rust vs Zig compile speeds

A developer created an open-source tracing tool called buildprof that visualizes where time goes during software compilation on Linux, mapping every process and subprocess onto a single timeline. The project was sparked by a claim from Bun architect Jarred Sumner that Bun's new Rust build compiled over 5 times faster on Linux than its previous Zig build, a result the developer found suspicious given that the two builds used different link-time optimization settings—Full LTO for Zig versus ThinLTO for Rust.

lalitm.com · 2026-09-12

Developer uses Fable AI tool to port 65,000-line Go codebase to Rust for $400

A programmer describes using an AI system called Fable to convert a 65,000-line-of-code Go project into Rust, spending roughly $400 in the process. The approach relied on representing the codebase as data structures like graphs, state machines and constraints, then operating on those representations rather than translating code line by line, contrasting with a more mechanical file-by-file porting method used in an earlier Bun-to-Rust rewrite.

iurii.net · 2026-09-01