Requirements

• A Linux server. The installer sets Docker up for you when it is missing, using Docker's own install script, and starts it.
• On macOS the installer starts OrbStack or Docker Desktop, and installs OrbStack through Homebrew when neither is there.
• 4 GB of RAM. 2 GB works for one user but leaves little room.
• 20 GB of free disk space for the images, the database and backups.
• openssl and curl. Most distributions ship both.
• For a public install: a domain name whose DNS record points at the server, and ports 80 and 443 open.

The images are built for linux/amd64 and linux/arm64.