Yeah the packaging part of NixOS/Nixpkgs is very pleasant. You write a "config" in the Nix language (example[1] of vorbis-tools, it's <40 LOC), open a PR on Github and it'll be submitted provided you follow the CR feedback. As a user you'd later download the built binary from the NixOS cache so you don't have to build it yourself.

[1]: https://github.com/NixOS/nixpkgs/blob/fce8f26af6ef8209c7d282...