nixos/system/plasma.nix

{ pkgs, ... }: {
  imports = [ ./desktop.nix ];
  environment.systemPackages = with pkgs;
    with libsForQt5; [
      plasma-wayland-protocols
      plasma-integration
      plasma-browser-integration
      plasma-thunderbolt
      kwin-tiling
      krdc
    ];
  services.xserver = {
    enable = true;
    desktopManager.plasma5.enable = true;
    displayManager.sddm = {
      enable = true;
      settings = { General = { InputMethod = ""; }; };
    };
  };
}