nixos/system/users.nix

{ pkgs, ... }:

{
    users.users.chris = {
        uid = 1000;
        isNormalUser = true;
        initialPassword = "changeme123";
        shell = pkgs.zsh;
        extraGroups = [
            "chris"
            "wheel"
            "networkmanager"
            "docker"
        ];
    };
}