npm cache clean: How to clear npm cache on MacHow to clear npm cache on a Mac with npm cache clean --force, why npm asks for --force, and how to clear the Yarn and pnpm caches.
How to flush DNS cache on MacHow to flush DNS on Mac with one Terminal command, clear Chrome’s own DNS cache, and when flushing DNS actually helps.
How to delete files on MacHow to delete files on Mac: Move to Trash with Command-Delete, delete a file right away without the Trash, and what to do when a file won’t delete.
How to right click on MacHow to right click on Mac: Control-click, a two-finger click on a MacBook trackpad, the right side of a Magic Mouse, or any two-button mouse.
How to clear Mail cache on MacHow to clear Mail cache on Mac: see how much space Mail takes, erase deleted mail, limit attachment downloads, rebuild a mailbox and remove old accounts.
pnpm store prune: how to clear pnpm cache on MacHow to clear pnpm cache on a Mac with pnpm store prune, where pnpm keeps its store and cache, and what to do with store folders of older pnpm versions.
How to clear Xcode cache on MacHow to clear Xcode cache on a Mac: delete DerivedData, clean the build folder, remove old simulators, runtimes and device support files.
How to change default browser on MacHow to change default browser on Mac in System Settings or from the browser itself, how to switch back to Safari, and where the default email app is set.
How to merge PDF files on MacHow to merge PDF files on Mac for free: in Preview by dragging pages, with Edit › Insert, or in Finder with Quick Actions › Create PDF.
How to scan documents on MacHow to scan documents on Mac with your iPhone (Continuity Camera), into Notes, or with a scanner in System Settings and Image Capture. Free, built in.
How to print screen on MacHow to print screen on Mac without a Print Screen key: Shift-Command-3, 4 and 5, where screenshots are saved and how to copy one to the clipboard.
How to uninstall Node.js on Mac completelyHow to uninstall Node.js on a Mac: installed from nodejs.org, with Homebrew or with nvm (nvm uninstall), and how to check that node is gone.
How to boot Mac in safe modeHow to boot a Mac in safe mode on Apple silicon and Intel, how to tell it worked, what safe mode does and how to leave it.
How to open Terminal on Mac and use itHow to open Terminal on Mac with Spotlight or Finder, open it at a folder, run the first safe commands and stop a command with Control-C.
Mac not turning on: what to doMac not turning on? Check the power and the display, force a restart, reset the SMC on Intel, revive the firmware, and know when to contact Apple.
How to find Wi-Fi password on MacHow to find a Wi-Fi password on Mac in the Passwords app or Wi-Fi settings, share it with a QR code, and where to look on macOS Sonoma.
How to uninstall Python on Mac completelyHow to uninstall Python on a Mac: from python.org, Homebrew or pyenv, what to keep (Apple’s own python3) and how to check it’s gone.
How to clear Firefox cache on MacHow to clear Firefox cache on Mac and keep your sign-ins, bookmarks and passwords: the Clear Recent History window, one site’s data, and what not to delete.
How to clear media cache in Premiere Pro on MacClear media cache in Premiere Pro on a Mac from Settings › Media Cache, turn on automatic cleanup and find the Adobe cache folder.
How to stop apps from opening on startup on MacHow to stop apps from opening on startup on a Mac: remove login items, turn off background items and stop windows from reopening.
How to cut and paste on Mac: text and filesHow to cut and paste on Mac: Command-X and Command-V for text, Option-Command-V to move files, Paste and Match Style, and pasting on an iPhone.
How to speed up a slow MacHow to speed up a Mac: find what slows it down in Activity Monitor, free disk space, trim login items, update and restart. No myths.
How to uninstall Homebrew on MacHow to uninstall Homebrew on a Mac with its official script: what to save first, what happens to apps from casks, and the leftovers to remove.
How to find large files on MacHow to find large files on Mac with Storage settings, a Finder search by file size or Terminal, and what to check before you delete them.

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