bun install fails on pnpm catalog protocol (catalog: dependencies)

[schickling]

What happens?

bun install fails when a dependency uses pnpm's catalog: protocol (resolved via pnpm-workspace.yaml). The error is failed to resolve, which blocks migration from pnpm for repos using catalogs.

Steps to reproduce

1. Create a repo with:

{
  "name": "catalog-repro",
  "private": true,
  "devDependencies": {
    "typescript": "catalog:"
  }
}

2. Add pnpm-workspace.yaml with:

catalog:
  typescript: 5.9.2

3. Run: bun install

Actual output

error: typescript@catalog: failed to resolve

Expected

Either support catalog: as a dependency protocol (pnpm compatibility), or provide a clear migration/error message with suggested alternatives.

Environment

• Bun: 1.3.5 (1e86ceb)
• OS: macOS

---

Filed on behalf of @schickling.

[schickling]

Update: we switched to Bun catalogs per https://bun.com/docs/pm/catalogs (catalog defined in root package.json and package.json deps use "catalog:"), and pnpm-workspace.yaml now only lists packages. So the pnpm catalog protocol isn’t in our migration path anymore. If supporting pnpm catalogs is out of scope for Bun, feel free to close; otherwise this still documents the failure when bun sees pnpm-workspace.yaml catalogs.

[schickling]

(Posted on behalf of the LiveStore maintainer.)