{ inputs, lib, ... }:
{
  imports = [ inputs.nixos-core.nixosModules.default ];
  system.activationScripts.users = lib.mkForce "";
  system.disableInstallerTools = true;
  programs.less.lessopen = null;
  boot.enableContainers = false;
  boot.loader.grub.enable = false;
  environment.defaultPackages = lib.mkDefault [ ];
  documentation.info.enable = false;
  system.tools.nixos-option.enable = false;
  system.tools.nixos-generate-config.enable = lib.mkDefault false;
  system.nixos-core.enable = true;
  # system.nixos-core.components.userGroupsActivation.enable = false;
  nixpkgs.overlays = [
    (final: prev: {
      xdg-utils = final.symlinkJoin {
        name = "xdg-utils-handlr-shim-${prev.handlr-regex.version or "0"}";
        paths = [
          final.xdg-user-dirs
          (final.writeShellScriptBin "xdg-open" ''exec ${final.handlr-regex}/bin/handlr open "$@"'')
          (final.writeShellScriptBin "xdg-mime" ''exec ${final.handlr-regex}/bin/handlr mime "$@"'')
          (final.writeShellScriptBin "xdg-settings" ''exec ${final.handlr-regex}/bin/handlr get "$@"'')
          (final.writeShellScriptBin "xdg-email" ''exec ${final.handlr-regex}/bin/handlr open "mailto:$*"'')

          (final.writeShellScriptBin "xdg-desktop-menu" "exit 0")
          (final.writeShellScriptBin "xdg-desktop-icon" "exit 0")
          (final.writeShellScriptBin "xdg-icon-resource" "exit 0")
          (final.writeShellScriptBin "xdg-screensaver" "exit 0")
        ];
        meta = {
          description = "xdg-utils shim backed by handlr-regex (perl-free)";
          mainProgram = "xdg-open";
        };
      };
    })
  ];
}