System/modules/linux/hyprland.nix

{ config, lib, pkgs, inputs, ... }:
let nc = config.nathan.config;
in with lib; {
  config = mkMerge [
    (mkIf nc.hyprland.enableGreetd {
      # Greetd for login
      programs.regreet = {
        enable = true;
        settings = { GTK = { font_name = "Roboto 16"; }; };
      };
      services.greetd = {
        enable = true;
        settings = { default_session.command = "cage -s -- regreet"; };
      };
      environment.systemPackages = with pkgs; [
        # Greeter packages
        cage
        config.programs.regreet.package
        gnome.adwaita-icon-theme
      ];
    })
    (mkIf nc.hyprland.enable {
      # Turn on GDM for login
      services.xserver = {
        enable = true;
        autorun = false;
        # Enable plasma for the applications
        desktopManager.plasma5.enable = true;
      };
      # Setup drivers
      hardware.opengl = {
        # Enable vulkan
        driSupport = true;
        # Same as above, but enable 32 bit legacy support (for games)
        driSupport32Bit = true;
      };
      # Basic packages that are effectively required for a graphical system
      environment.systemPackages = with pkgs; [
        # GTK Theming
        gtk-engine-murrine
        gtk_engines
        gsettings-desktop-schemas
        lxappearance
        kde-gtk-config
        (stdenv.mkDerivation rec {
          pname = "sddm-sugar-dark-theme";
          version = "1.2";
          dontBuild = true;
          installPhase = ''
            mkdir -p $out/share/sddm/themes
            cp -aR $src $out/share/sddm/themes/sugar-dark
          '';
          src = fetchFromGitHub {
            owner = "MarianArlt";
            repo = "sddm-sugar-dark";
            rev = "v${version}";
            sha256 = "0gx0am7vq1ywaw2rm1p015x90b75ccqxnb1sz3wy8yjl27v82yhb";
          };
        })
      ];
      qt.platformTheme = "qt5ct";
      # Enable and configure hyperland
      programs.hyprland = {
        enable = true;
        xwayland = {
          enable = true;
          hidpi = false;
        };
      };
      # Make swaylock work
      # https://github.com/NixOS/nixpkgs/issues/158025
      security.pam.services.swaylock = { };

      environment.sessionVariables = { MOZ_ENABLE_WAYLAND = "1"; };

    })
  ];
}