devclean scans your entire dev environment and shows you what's reclaimable:
npm i -g devclean-cli devclean scan
It found 12GB on my machine — 23 forgotten node_modules, Cargo targets, brew cache, Xcode DerivedData.
Features: - Scans: node_modules, Docker, Homebrew, pip, Cargo, Xcode, npm/yarn caches - devclean scan is read-only (never deletes without you asking) - --dry-run to preview, --older-than 30 to protect active projects - Selective cleaning with --node-modules, --docker, etc.