Free · v1.0, 3 Nov 2026

The Disk Cheat Sheet

Every folder your developer tools and AI models fill on a Mac: what it is, whether it is safe to remove, and the tool's own command to clean it. Made for the tools you use.

Ten folders, one line each

The first three were measured on the builder's Mac. The verdicts are Spaceific's own words, from its public rule book.

  1. Ollama modelsReview first
    ~/.ollama/models

    It can come back, but at a cost: read before you move it. 21.09 GB on the builder's Mac (6 Oct 2026).

  2. npm cacheRebuildable
    ~/.npm/_cacache

    Its tool makes it again on its own. The cost is a slower next run. 2.79 GB on the builder's Mac (6 Oct 2026).

  3. DerivedDataRebuildable
    ~/Library/Developer/Xcode/DerivedData

    Its tool makes it again on its own. The cost is a slower next run. Frees at least 1.07 GB on the builder's Mac (9 Oct 2026).

  4. Puppeteer cacheRebuildable
    ~/.cache/puppeteer

    Its tool makes it again on its own. The cost is a slower next run.

  5. Cargo registryRebuildable
    ~/.cargo/registry

    Its tool makes it again on its own. The cost is a slower next run.

  6. pip cacheRebuildable
    ~/Library/Caches/pip

    Its tool makes it again on its own. The cost is a slower next run.

  7. pnpm storeRebuildable
    ~/Library/pnpm/store

    Its tool makes it again on its own. The cost is a slower next run.

  8. Simulator DevicesNo rule yet
    ~/Library/Developer/CoreSimulator/Devices

    No rule yet in Spaceific: shown, never recommended.

  9. Hugging Face cacheNo rule yet
    ~/.cache/huggingface

    No rule yet in Spaceific: shown, never recommended.

  10. iOS DeviceSupportNo rule yet
    ~/Library/Developer/Xcode/iOS DeviceSupport

    No rule yet in Spaceific: shown, never recommended.

Get the full sheet, for your tools

  • Every folder for the tools you pick, with what removing it does and how it comes back.
  • Each tool's own command, quoted from its documentation, with the link and the date read.
  • The folders never to delete, and why space does not always come back.
Tools you use (optional, pick any)

Send me the Disk Cheat Sheet, one email when Spaceific launches, and a notice 24 hours before the founder licences open. Nothing else unless I tick it. Unsubscribe in one click. Privacy.

Nothing else here is behind an email: all 27 rules are on /rules, and every guide is on /guides.