Guides

Plain answers to "what's filling up my Mac, and can I delete it?"

• What is "System Data" on a Mac, and how do you shrink it?What's inside, what shrinks on its own, local snapshots, and what to leave alone.
• Is it safe to delete node_modules, DerivedData and other developer caches?Sixteen developer folders, what deleting each one costs, and the proper command.