NixOS-Config/modules/system/programs/security/doas/default.nix

{ ... }:
{
  security = {
    sudo.enable = false;
    doas = {
      enable = true;
      extraRules = [
        { # Give wheel root access
          groups = [ "wheel" ];
          keepEnv = true;
          persist = true;
        }
      ];
    };
  };
}