What is your reasoning behind nr.3? I don’t disagree as they seem hostile towards the nix HA project. At least that is what I gathered when I set up my zigbee devices on a NixOS server.
1: Though NixOS users have both social and technical reasons for more strongly wanting software to be in nixpkgs than e.g. Ubuntu users have for wanting the software to be distributed via apt.
2. Not wanting people to open tickets/issues is completely orthogonal to being libre software.