[m] Android dev, cleanup, qemu,...

modules/nixos/system/nix/default.nix

@@ -2,6 +2,7 @@
   nixpkgs.config = {
     permittedInsecurePackages = [ ];
     allowUnfree = true;
+    android_sdk.accept_license = true;
     packageOverrides = pkgs: rec {
       custom = import ../../../../packages { inherit pkgs; };
     };