I use `git --separate-git-dir=~/.dotfiles --work-tree=~/` and have a .gitignore set to whitelist only things I want to track. This keeps git from colliding with things I have checked out below. I also have configuration.nix import an expression I checked into my $HOME, so I can share common config between all my machines.

For shells, I have a custom `env-python [-p <packageNames>] [-f <extraPaths>]` which brings a fully-configured VS Code (with per-environment config), debuggers and neovim with all the trimmings. Everything inherits in layers so I can add different kinds of environments quite easily.

If you'd like, I can share my dotfiles with you. It's pretty custom but the beauty of Nix is you can clone and run!