Bun
Source: bun.sh · Status: open/active
Summary
Section titled “Summary”JavaScript/TypeScript runtime, test runner, and package manager; runs the entire deterministic
substrate — the sdlc CLI, the op registry, and the test battery.
Chosen with the TypeScript substrate (D-0006-typescript-substrate).
The @lib/* import aliases resolve only under bun’s runtime, which is
why site generation shells to bun run for registry access rather than
importing across runtimes.