First launch: “can’t be opened” / Gatekeeper

I downloaded the DMG from macfullstack.ru. macOS says the app is damaged or unverified. Expected, or did I grab a fake?

That is Gatekeeper, not malware. The app ships outside the App Store — macOS greets any independent DMG this way until you explicitly allow it.

1. Right-click MacFullStack → Open.
2. Or System Settings → Privacy & Security → Open Anyway.
3. You need macOS 14+ and Apple Silicon (not Intel, not Rosetta).

Take the DMG only from the download page. After the first Open, it installs like a normal app: Native by default, first PHP project on Free.

Help: /help/install-download, /help/gatekeeper-ports.