macOS
9 questions
How to install Homebrew?
•/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)".
•brew install package.
•brew cask install app — for GUI.
•brew update && brew upgrade.
•The main package manager for Mac.
What are the hotkeys?
•Cmd+Space — Spotlight.
•Cmd+Tab — switch applications.
•Cmd+Q — close.
•Cmd+Shift+3/4 — screenshot.
•Cmd+Option+Esc — force quit.
How to free up space on Mac?
•Apple → About This Mac → Storage → Manage.
•Optimize Storage.
•Delete ~/Library/Caches.
•Empty Trash.
•OmniDiskSweeper for analysis.
How to back up Time Machine?
•Connect an external disk.
•System Preferences → Time Machine.
•Select disk.
•Automatic hourly backups.
•Restore from Recovery Mode.
How to reset Mac to factory settings?
•Apple → System Preferences → General → Transfer/Reset.
•Erase content and settings.
•Or: Recovery Mode (Cmd+R at startup).
•Disk Utility → Erase disk.
•Reinstall macOS.
macOS: how to set up iCloud, Handoff, and Continuity?
For «macOS», start with requirements: what should work, what are the limitations by budget/performance/security. Then choose a solution.
macOS: how to optimize performance and monitor resources?
Practice for «macOS»: create a checklist (installation, setup, backup, updates) and go through it once — this reduces the number of «mystical» problems.
macOS: how to enhance security (FileVault, Gatekeeper, T2)?
Answer for «macOS»: updates and backups are more important than fine-tuning. Automate backups and enable 2FA.
macOS: how to automate tasks (Shortcuts, Automator, scripts)?
For macOS: it is useful to find the original source (documentation, release notes) and reproduce the problem with a minimal example.