How do you do the initial setup? I'm concerned with anything that happens before activating the dev shell.

Right now I wrote a bash script to check for nix, direnv, git, gpg, etc. But it feels a bit clumsy, compared to the flake that contains the dev shell.

For my own system I set up home manager. But I don't want to make the use of home manager a requirement, as it can be quite opinionated. (e.g. setting up direnv will be done by generating a .zshrc, which can be limiting to some)