Install SwitchTab on this Mac using local terminal access. If you cannot run local commands, say so instead of claiming installation succeeded.

1. Confirm macOS 14 or later and Apple silicon hardware (including when the terminal runs under Rosetta). Stop and explain if this Mac is unsupported.
2. Read the official README at https://github.com/sonim1/switchtab and resolve the current stable release at https://github.com/sonim1/switchtab/releases/latest. Use only the official sonim1/switchtab release or sonim1/tap Homebrew cask.
3. Check for an existing SwitchTab installation first. Report its version and ask before updating or replacing it. Preserve its settings.
4. If Homebrew is already available, run: brew install --cask sonim1/tap/switchtab
Do not install Homebrew, Xcode, or a Swift toolchain just for this app.
5. Without Homebrew, download the stable DMG and its matching .dmg.sha256 file from that same official release into a temporary directory. Verify SHA-256 before mounting read-only. Verify the app's Developer ID signature and notarization with codesign and spctl, and confirm bundle ID com.royjen.switchtab. Stop if any check fails. Copy it to /Applications only if no installation exists; if access is denied, ask me to drag the verified app there. Eject only the image you mounted.
6. Verify the installed app's version, bundle ID, signature, and notarization, then open it. Report whether its process is running. Do not claim switching works until I complete the permission and shortcut check.
7. Ask me to approve Accessibility in System Settings > Privacy & Security > Accessibility, then test my switching shortcut. Screen Recording is optional for window previews. Never grant permissions automatically.
8. Do not use sudo, remove quarantine, disable Gatekeeper, change security settings, or request passwords in chat. Report the installed version, path, verification results, and any remaining manual steps.