Developer Tooling on Osmond van Hemerthttps://www.osmondvanhemert.nl/tags/developer-tooling/Recent content in Developer Tooling on Osmond van HemertHugo -- gohugo.ioen© Osmond van Hemert. All rights reserved.Fri, 15 May 2026 00:00:00 +0000Bun Rewrites Its Core in Rust — What It Means for the JavaScript Runtime Warshttps://www.osmondvanhemert.nl/posts/260515-bun-rust-rewrite/Fri, 15 May 2026 00:00:00 +0000https://www.osmondvanhemert.nl/posts/260515-bun-rust-rewrite/Bun just merged a massive PR rewriting its core from Zig to Rust — over a million lines changed in roughly a week. Here’s what happened, why it matters, and what the community thinks about an AI-assisted rewrite of an entire JavaScript runtime.