nixos-configs/modules/desktop/themes/qt.nix

{ inputs, config, lib, pkgs, ... }:

with lib;
with lib.my;
let cfg = config.modules.desktop.themes.qt;

in {
  options.modules.desktop.themes.qt = { enable = mkBoolOpt false; };

  config = mkIf cfg.enable {

    environment.systemPackages = with pkgs; [
      libsForQt5.qt5.qtquickcontrols2
      libsForQt5.qt5.qtgraphicaleffects
    ];

    home-manager.users.${config.user.name} = {

      qt = {
        enable = true;
        platformTheme.name = "gtk";
        style = {
          name = "adwaita-dark";
          package = pkgs.unstable.adwaita-qt;
        };
      };
    };
  };
}