Migrate yarn to pnpm (and turborepo)

[mcorrig4]

Has there been any discussion to migrate from yarn workspaces to pnpm?

I personally modified my latest scaffold-eth project to pnpm + turborepo and I find the dev experience to be much better.

Arguments for pnpm over yarn:

• Speed & Efficiency: pnpm installs are significantly faster (global content-addressable store)
• Disk Space Savings: pnpm hard-links dependencies, reducing node_modules size when you have lots of projects.
• Stricter Dependency Resolution: Unlike Yarn v1’s hoisting, pnpm enforces correct dependency declarations
• Better Monorepo Tooling: Native recursive commands and filtering (--filter, -r) make working in multi-package repos much smoother.
• CI & Dev Experience: Faster cold installs with pnpm fetch, deterministic lockfile, and smooth integration with tools like Turborepo for caching and parallel builds.

Benefit of turborepo caching:

• dependsOn: enforces the pipeline (e.g., compile -> generate-types -> build), so nextjs can’t build on stale typechain types
• Explicit inputs/outputs: only affected tasks rerun -> unchanged packages skip rebuilds while artifacts like .next/**, typechain-types/** are reused
• First-class long-running tasks: persistent: true for dev/chain/fork orchestrates local Hardhat + Next (I had previously been using a vs code tasks.json to do similar, but turborepo is definitely better and more modern solution)

Next Steps

Please let me know if there is any interest and if this would even be considered. If so, I'm happy to create a PR on the latest code to demonstrate what the migration would look like.