Mac guides

Short instructions for the Mac settings that come up while installing an app: Rosetta 2, Terminal access, SIP, Launchpad, and Gatekeeper.

Rosetta 2: what it is and how to install itRosetta 2 lets an Apple silicon Mac run an Intel app. Install it from the prompt, or with softwareupdate --install-rosetta in Terminal.
Give Terminal full disk access on a MacTurn on Full Disk Access and App Management for Terminal in Privacy & Security, on Ventura and later and on Monterey and earlier.
SIP on a Mac: what it is and how to turn it offSystem Integrity Protection blocks changes to protected Mac files. Turn it off only from Recovery with csrutil, then turn it back on.
What to use instead of Launchpad on macOS 26macOS 26 removed Launchpad. Ten third-party launchers that open apps from a hotkey or an icon grid, with the prices their publishers list.
The app is damaged: Gatekeeper on a MacWhen macOS says an app is damaged, clear quarantine with xattr, allow it in Privacy & Security, or turn Gatekeeper off with spctl.