If you want to self-host in NixOS, we have made it easy to do. We have a pretty good DIY at our git pages.

https://git.sovransystems.com/Sovran_Systems/Sovran_SystemsOS/src/branch/main/for_new_sovran_pros/How%20To%20Install%20Sovran_SystemsOS.md

Our support channel for DIY is here: https://matrix.to/#/%23DIY_Sovran_SystemsOS:anarchyislove.xyz