Bun apps can't reference local packages in pnpm monorepo

[yamcodes]

Problem

Bun apps in our pnpm monorepo can't properly reference local workspace packages.

The bun-solid-start-playground app currently uses the file: protocol to reference local packages:

• "arkenv": "file:../../../packages/arkenv"
• "@arkenv/vite-plugin": "file:../../../packages/vite-plugin"

However, this doesn't work well because:

1. Bun doesn't understand pnpm's workspace:* protocol
2. The file: protocol doesn't integrate with the monorepo's dependency resolution
3. This prevents proper dependency management and build processes

Context

• Monorepo uses pnpm with workspace:* protocol
• Bun apps are excluded from pnpm workspace (see pnpm-workspace.yaml)
• Need a solution that allows Bun apps to reference local packages

Expected Solution

A way for Bun apps to reference local monorepo packages that works with both Bun's package manager and the pnpm monorepo structure.