mir-backend-bun

Make It Right (Bun runtime tier). Bun 1.3 reliability footguns shared across every Bun backend (Bun.serve, Hono, Elysia, or Express under bun) — Bun is a separate runtime on JavaScriptCore, not a faster Node. Covers: Node API gaps that present as silent stubs rather than errors, caught in CI or not at all; native addons that require() cleanly then abort on first real use; Bun.serve defaults that differ from…