No I didn’t read the FAQ, I read the get started section.

> Get a Nix environment set up on your host machine. HomeFree must be deployed from another machine with Nix installed. If you are on NixOS, you should be good to go. If you are on a different distribution of Linux, follow the instructions on how to install and use Nix.

Right, the published version is a super early technical preview. As mentioned in my top level comment the installer and admin UI are in a branch and I will update the website once these are released.