{ inputs, self, ... }: {
  flake.nixosModules.graphics = { pkgs, config, lib, ... }: {
    options.features.applications.gui = {
      fluxer.enable = lib.mkEnableOption "fluxer";
      fluxer-canary.enable = lib.mkEnableOption "fluxer-canary";
    };

    config = {
      environment.systemPackages = (if config.features.applications.gui.fluxer.enable then [
        (pkgs.callPackage ({ appimageTools, fetchurl, lib, pkgs, ... }:
        let
          pname = "fluxer";
          version = "0.0.8";

          src = fetchurl {
            url = "https://api.fluxer.app/dl/desktop/stable/linux/x64/latest/appimage";
            sha256 = "sha256-GdoBK+Z/d2quEIY8INM4IQy5tzzIBBM+3CgJXQn0qAw=";
          };

          appimageContents = appimageTools.extract { inherit pname version src; };
        in
        appimageTools.wrapType2 rec {
          inherit pname version src;

          extraInstallCommands = ''
            install -m 444 -D ${appimageContents}/${pname}.desktop $out/share/applications/${pname}.desktop

            install -m 444 -D ${appimageContents}/${pname}.png $out/share/icons/hicolor/512x512/apps/${pname}.png

            substituteInPlace $out/share/applications/${pname}.desktop \
              --replace 'Exec=AppRun --no-sandbox %U' 'Exec=${pname} %U'
          '';

          meta = with lib; {
            description = "Open-source, self-hosted alternative to Discord";
            homepage = "https://fluxer.app/";
            license = licenses.agpl3Only;
            maintainers = [ ];
            platforms = [ "x86_64-linux" ];
          };
        }) {})
      ] else []) ++ (if config.features.applications.gui.fluxer-canary.enable then [
        (pkgs.callPackage ({ appimageTools, fetchurl, lib, pkgs, ... }:
        let
          pname = "fluxer-canary";
          version = "2026.827.132039";

          src = fetchurl {
            url = "https://api.canary.fluxer.app/dl/desktop/canary/linux/x64/latest/appimage";
            sha256 = "sha256-eRR9JZa4LPuUtjdDO+JvzaOLxQeDgVziLrFr5iIgr1Q=";
          };

          appimageContents = appimageTools.extract { inherit pname version src; };
        in
        appimageTools.wrapType2 rec {
          inherit pname version src;

          extraInstallCommands = ''
            install -m 444 -D ${appimageContents}/${pname}.desktop $out/share/applications/${pname}.desktop

            install -m 444 -D ${appimageContents}/${pname}.png $out/share/icons/hicolor/512x512/apps/${pname}.png

            substituteInPlace $out/share/applications/${pname}.desktop \
              --replace 'Exec=AppRun %U' 'Exec=${pname} %U'
          '';

          meta = with lib; {
            description = "Open-source, self-hosted alternative to Discord";
            homepage = "https://fluxer.app/";
            license = licenses.agpl3Only;
            maintainers = [ ];
            platforms = [ "x86_64-linux" ];
          };
        }) {})
      ] else []);
    };
  };
}