Refactor: Avoid use folder for one file

Fix #3

modules/home/apps/flatpak.nix

@@ -0,0 +1,36 @@
+{ config, lib, ... }:
+
+with lib;
+let
+  cfg = config.modules.home.apps.flatpak;
+in
+{
+  options.modules.home.apps.flatpak = {
+    enable = mkEnableOption ''
+      Enable flatpak with my custom configurations
+    '';
+  };
+
+  config = mkIf cfg.enable {
+    services.flatpak = {
+      enable = true;
+
+      update.onActivation = true;
+
+      packages = [
+        # Gaming
+        { appId = "com.discordapp.Discord"; origin = "flathub";  }
+        { appId = "net.lutris.Lutris"; origin = "flathub";  }
+
+        # Pro
+        { appId = "ch.protonmail.protonmail-bridge"; origin = "flathub";  }
+        { appId = "org.kde.neochat"; origin = "flathub"; }
+
+        # Loisir
+        { appId = "io.github.zen_browser.zen"; origin = "flathub"; }
+        { appId = "com.spotify.Client"; origin = "flathub"; }
+        { appId = "org.videolan.VLC"; origin = "flathub"; }
+      ];
+    };
+  };
+}