I wanted to remind people about this drama from the creator of HA, Frenck toward Nix maintainers packaging Home-Assistant in nixpkgs.
If he behaves in this immature, dictatorial way, it is not a stretch to think that he will eventually close his source code and/or cash in on the popularity of his open source software like the Pi Foundation and OpenAI did to differing degrees.
TLDR; Frenck is convinced that he has the right to unilaterally mandate how people package his free, open source software and, in my opinion, will most likely behave with similar lack of integrity/lack of transparency with regards to profiteering off of his work eventually. We should fork the project ASAP to protect it from the power-hungry Luddite in charge (that reminds me of Spez).
Get a grip. You are too emotionally invested. You can fork the project right now and ask nothing of the original dev. So maybe follow your own philosophy and leave HA alone. It sounds like you want this to work on NixOS but dont want to maintain a fork.