Mac and Windows, updates itself
Install
Open the downloaded file and drag Atrium into Applications.Run the downloaded installer; it does the rest.
If macOS won’t open it: right-click Atrium in Applications → Open → Open. No Open there? System Settings → Privacy & Security → Open Anyway.If Windows shows a blue window: More info → Run anyway.
On first launch, choose “Have an invite” and paste the link from a friend. Sign up, and you’re in.
Atrium also runs in the browser at your server’s address. On phones too, with an icon on the home screen.
One of you sets it up, from the app or with one command. Server setup →