Refine development categories

[ryantm]

I just did the reverse naming of Nixpkgs Architecture → Nixpkgs a few days ago.

Nixpkgs Architecture Team Creation

@ryantm Could you give me permission to change the topic of posts? The topic is sometimes used for posts not relevant to the nixpkgs architecture, like this, this or this. I could fix these cases manually myself if I get permission for that. Or maybe the topic needs to be renamed (I’d propose Development/Nixpkgs Architecture), which hopefully makes it better for the future

But, I wasn’t thinking that hard about it.

Yeah, I think this generally makes sense.