I built this because my Mac's "System Data" was 220GB. After running CleanMyMac, it barely moved. Turns out Claude Desktop, Cursor, uv, Playwright, and Puppeteer were hiding gigabytes of cached data in ~/Library.

  devpurge scans 29 known cache paths and lets you remove
  them interactively.

  - Pure Bash, zero dependencies
  - Whitelist-only (no dynamic path discovery)
  - Never uses sudo
  - Dry run mode to scan without deleting
  - brew install available

  On my machine: 221GB → 176GB after cleanup.