https://github.com/badly-drawn-wizards/dotfiles/blob/master/nixos/flake.nix
    !!!
https://github.com/chayward1/dotfiles
    ! hosts and host names are grabbed from file
    https://github.com/chayward1/dotfiles/blob/main/flake.nix
https://github.com/hlissner/dotfiles
    ! hey-util for misc stuff
    https://github.com/hlissner/dotfiles/blob/master/bin/hey

https://github.com/epage/nix-home
https://gitlab.com/luc65r/dotfiles
https://git.catgirl.ai/ext0l/nixos-config
    https://catgirl.ai/log/nixos-experience/

https://github.com/JonathanReeve/dotfiles/blob/minimal/dotfiles/home.nix
https://github.com/bobvanderlinden/nix-home

https://github.com/quasi-coherent/nixpkgs
    incl direnv, zsh
    https://www.reddit.com/r/NixOS/comments/jznwne/effectively_combining_homemanager_and_nixdarwin/
        https://github.com/jwiegley/nix-config
        https://github.com/kclejeune/system

https://code.balsoft.ru/balsoft/nixos-config
    flakes, home-manager, secrets, tons of stuff

https://github.com/thomashoneyman/.dotfiles/blob/main/home.nix
    small-one

2020
https://www.reddit.com/r/NixOS/comments/klbuu2/unstable_packages_in_configurationnix_using_flakes/
    ! modules parameters for adding overlays