System/modules/linux/hyprland.nix

{ config, lib, pkgs, inputs, ... }:
let nc = config.nathan.config;
in with lib; {
  config = mkIf nc.hyprland.enable {
    # Turn on GDM for login
    services.xserver = {
      enable = true;
      autorun = false;
      # Enable plasma for the applications
      desktopManager.plasma5.enable = true;
    };
    # Greetd for login
    programs.regreet = {
      enable = true;
      settings = { GTK = { font_name = "Roboto 16"; }; };
      package = pkgs.greetd.regreet.overrideAttrs (old: {
        preBuild = ''
          export SESSION_DIRS=/run/current-system/sw/share/xsessions:/run/current-system/sw/share/wayland-sessions
          echo SESSION_DIRS=$SESSION_DIRS
        '';
      });
    };
    services.greetd = {
      enable = true;
      settings = { default_session.command = "cage -s -- regreet"; };
    };
    # 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; [
      # Greeter packages
      cage
      config.programs.regreet.package
      gnome.adwaita-icon-theme
      # 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"; };

  };
}