with nixos, the states of all the config files are collected into the nix configuration which you can modify manually.

Okay now that’s cool. Now I’m getting it.

I guess that happens even if you install nix in another OS?

Maybe that’s what I’m missing then. So with NIX, I need to make all config changes through it? I can’t change any config files myself? Or start a program with a certain flag?

you can (at least in theory) copy your centralized exact configuration to another computer and get an OS that behaves exactly the same and has all the same packages.

As can you with grepping your history of apt commands? And back up that to a file of a few dozen kilobytes too.

Am I stupid?

I don’t understand what this has that any other package manager, yum, apt etc doesn’t.

dependencies stored in their own unique directory

Yeah so?

I tend to think that extensions for websites should be treated as feature requests by the website. Reddit for example should have just incorporated RES features.

One I liked was tags for users to I could remember who they are better.

Just ditch your .tmux.conf and use oh my tmux. It should have everything you’re looking for.