Guides

One page per problem. Each says what is safe to remove and what to check first.

How to clear Xcode DerivedData safely
Free several gigabytes from Xcode builds, and know what comes back on the next build.
How to find what node_modules is using on your Mac
See which projects hold the most node_modules, and remove the ones you no longer work on.
How to free Flutter build cache on your Mac
Reclaim space from Flutter build output and package downloads without breaking your tools.