Best resource I’ve found is searching GitHub.

My setup closely follows github.com/Misterio77/nix-config.

For servarr I just translated someone else’s docker compose setup to nix. There are some ready made nix ones you can look at like github.com/rasmus-kirk/nixarr/tree/main/nixarr.

The complex networking I just picked up over time once I knew my way around a little bit.

GitHub is your best resource. lang:nix search terms.