Two Tiny Bun-Native Packages Trpc Over Bun.serve and a Kysely Postgres Dialect

I’ve been using Bun-first stacks in a few monorepos and ended up extracting two small packages that might save others some glue code. Both are MIT, ESM-only, and avoid Node shims.

— trpc-bun (Bun-native tRPC adapter: HTTP + WebSocket) What: Run tRPC on Bun.serve with first-class HTTP and WS. How: HTTP via a fetch adapter + server.upgrade; WS via Bun’s websocket handler; one-liner server composer; optional reconnect broadcast. Reqs: Bun ≥ 1.3.0, @trpc/server ≥ 11.6.0, TS ≥ 5. Repo: https://github.com/lacion/trpc-bun

Highlights: • Uses only public tRPC server APIs (v11) • createTrpcBunFetchAdapter, createTrpcBunWebSocketAdapter, configureTrpcBunServer • Connection params over WS, subscriptions, mutations, error shaping • Duplicate-id protection, graceful stop/disconnect • bun test + GitHub Actions CI

— kysely-bun-sql (Kysely Postgres dialect backed by Bun SQL) What: Tiny, dependency-free Kysely dialect/driver using Bun’s native SQL client. How: Pooled SQL under the hood (reserve()/release()), Kysely’s Postgres adapter + query compiler. Reqs: Bun ≥ 1.1.31, Kysely ≥ 0.28, TS ≥ 5. Repo: https://github.com/lacion/kysely-bun-sql

Highlights: • Bun-native PostgreSQL via new SQL() or env auto-detection • Pooling, prepared statements, parameter binding via Bun SQL • Full Kysely integration (adapter, query compiler, introspector) • Transactions and savepoints through Kysely • No runtime deps, ESM only

I’ve been running both in real projects; publishing them to get more eyes on edge cases. Would love feedback on correctness, ergonomics, and Bun version quirks. Issues/PRs welcome. Thanks for taking a look.