feat: move stuff around a bit, created new modules.

modules/linux/nixos/flatpak.nix

@@ -0,0 +1,26 @@
+{
+  config,
+  lib,
+  ...
+}: {
+  options = {
+    crony.flatpak.enable = lib.mkEnableOption "Enable and install flatpak packages.";
+  };
+
+  config = lib.mkIf config.crony.flatpak.enable {
+    # Enable flatpak
+    services.flatpak = {
+      enable = true;
+      packages = [
+        "com.dec05eba.gpu_screen_recorder"
+      ];
+
+      uninstallUnmanaged = true;
+
+      update.auto = {
+        enable = true;
+        onCalendar = "weekly";
+      };
+    };
+  };
+}