The day my CI pipeline went from 11 minutes to 90 seconds Last month I migrated a 240K-line TypeScript monorepo from a Node-based toolchain — Webpack, ESLint, Prettier, Jest, tsc — to an almost entirely Rust-based one: Turbopack, Oxc, Biome, Vitest with Rolldown, and tsgo. CI fell from 11 minutes 14 seconds to 1 minute 28 seconds. Local dev startup went from 8.4 seconds to 0.6. This is not an isolated number. It is the tail end of a quiet, three-year rewrite of the JavaScript toolchain in Rust and Go. As of mid-2026 the rewrite is mostly done. Here is the practical map for working developers.…