modules/android-integration: add am command

modules/environment/android-integration.nix

@@ -0,0 +1,36 @@
+# Copyright (c) 2019-2024, see AUTHORS. Licensed under MIT License, see LICENSE.
+
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.android-integration;
+
+  termux-am =
+    pkgs.callPackage (import ../../pkgs/android-integration/termux-am.nix) { };
+in
+{
+
+  ###### interface
+
+  options.android-integration = {
+
+    am.enable = lib.mkOption {
+      type = lib.types.bool;
+      default = false;
+      example = "true";
+      description = lib.mdDoc ''
+        Provide an `am` (activity manager) command.
+        Is not guaranteed to be a real deal, could be of limited compatibility
+        with real `am` (like `termux-am`).
+      '';
+    };
+
+  };
+
+  ###### implementation
+
+  config = {
+    environment.packages =
+      lib.mkIf cfg.am.enable [ termux-am ];
+  };
+}