I’ve been here a week ago already asking if Arch would be fine for a laptop used for university, as stability is a notable factor in that and I’m already using EndeavourOS at home, but now I’m curious about something else too - what about Arch vs NixOS?
I heard that NixOS is pretty solid, as due to the one file for your entire system format you can both copy and restore your system easily whenever, apart from your normal files and application configurations of course.
Are there any major downsides to NixOS compared to Arch apart from the Arch Wiki being a bit less relevant? I’d also lose access to the AUR, but admittedly I don’t think I’ve ever actually needed it for anything, it’s just nice to have. Also, since NixOS has both rolling release and static release and you can mix and match if you wanna get packages from unstable or not, I’m not losing Arch’s bleeding edge, which is nice.
You can setup your Arch with grub menu btrfs snapshots just like NixOS for convenient rollbacks. NixOS has too steep a learning curve, coming from someone who recently tried it and ended up being somewhat disappointed by it. NixOS sounds good on paper but in reality it is a long way from a mature product for desktop or general use.
As you mentioned Arch has AUR which packages just about anything and everything you could ever want in the future. And the Arch Wiki will never be “not relevant” so long as you are using Linux anywhere, the Arch Wiki is a handy reference.