Oxc

Nub is a Rust binary that wires the oxc transpiler into Node through module.registerHooks() and an --import preload, so TypeScript, JSX and .env load with no build step on the runtime everyone already ships.

An ArkType maintainer says he merged a whole monorepo onto it with zero issues. But a Node internals reader flags the --require hook choice, warning it could quietly break top-level await in ESM.

Production users showed up to confirm the compiler itself has quietly been working for a year — useMemo and useCallback deleted, performance up.

The sharpest critique: why freeze the Babel AST as the contract instead of going native with Oxc? The maintainers answered — Oxc isn't the only consumer.