SiftawayGuides
How to reclaim disk space from developer tools on a Mac, with or without Siftaway. Every command is one you can run yourself.
How to safely delete Xcode DerivedData, and what else Xcode leaves behind
Where Xcode stores DerivedData, archives, device support files and simulators on a Mac, which of them are safe to delete, and the commands to do it.
Find and delete old node_modules folders on a Mac without breaking a project
How to list every node_modules folder by size, check that a project can be reinstalled before deleting it, and clean the npm, pnpm and Yarn caches.
Docker is using too much disk space on a Mac: what to delete and what never to touch
How Docker Desktop stores data on macOS, why Docker.raw looks larger than it is, and the docker commands that reclaim space safely.
What is taking up “System Data” on a developer’s Mac
Where developer tools hide tens of gigabytes on macOS: Xcode, package manager caches, simulators, Docker and local snapshots, with commands to measure each.
Clean up Homebrew: old versions, downloads and unused dependencies
What brew cleanup removes, how to preview it, how to clear the download cache completely, and how to remove dependencies nothing needs any more.