---
summary: "Bun workflow (preferred): installs, patches, and gotchas vs pnpm"
read_when:
  - You want the fastest local dev loop (bun + watch)
  - You hit Bun install/patch/lifecycle script issues
---

# Bun

Goal: run this repo with **Bun** (optional) without losing pnpm patch behavior.

## Status

- Bun is an optional local runtime for running TypeScript directly (`bun run …`, `bun --watch …`).
- `pnpm` is the default for builds and remains fully supported (and used by some docs tooling).
- Bun cannot use `pnpm-lock.yaml` and will ignore it.

## Install

Default:

```sh
bun install
```

Note: `bun.lock`/`bun.lockb` are gitignored, so there’s no repo churn either way. If you want *no lockfile writes*:

```sh
bun install --no-save
```

## Build / Test (Bun)

```sh
bun run build
bun run vitest run
```

## pnpm patchedDependencies under Bun

pnpm supports `package.json#pnpm.patchedDependencies` and records it in `pnpm-lock.yaml`.
Bun does not support pnpm patches, so we apply them in `postinstall` when Bun is detected:

- [`scripts/postinstall.js`](https://github.com/clawdbot/clawdbot/blob/main/scripts/postinstall.js) runs only for Bun installs and applies every entry from `package.json#pnpm.patchedDependencies` into `node_modules/...` using `git apply` (idempotent).

To add a new patch that works in both pnpm + Bun:

1. Add an entry to `package.json#pnpm.patchedDependencies`
2. Add the patch file under `patches/`
3. Run `pnpm install` (updates `pnpm-lock.yaml` patch hash)

## Bun lifecycle scripts (blocked by default)

Bun may block dependency lifecycle scripts unless explicitly trusted (`bun pm untrusted` / `bun pm trust`).
For this repo, the commonly blocked scripts are not required:

- `@whiskeysockets/baileys` `preinstall`: checks Node major >= 20 (we run Node 22+).
- `protobufjs` `postinstall`: emits warnings about incompatible version schemes (no build artifacts).

If you hit a real runtime issue that requires these scripts, trust them explicitly:

```sh
bun pm trust @whiskeysockets/baileys protobufjs
```

## Caveats

- Some scripts still hardcode pnpm (e.g. `docs:build`, `ui:*`, `protocol:check`). Run those via pnpm for now.