The Matrix room is the recommended channel of support
I personally think it’s a bit a waste of somebody’s time to always sit there and reply
Also, when you start understanding how this stuff works, you can start using github’s search code so you can find snippets of code and make your own (or just look at the packages’ code, it’s very basic inside)
Ah, and forgot to mention because it’s too obvious, nixpkgs search, this is basically all you need for free movement inside “nixverse”