Add android development environment and added opencode models

system/nix/nixpkgs.nix

@@ -5,6 +5,7 @@ _: {
       permittedInsecurePackages = [
         "electron-38.7.1"
       ];
+      android_sdk.accept_license = true;
     };
   };
 }

system/programs/default.nix

@@ -7,5 +7,6 @@ _: {
   programs = {
     dconf.enable = true;
     seahorse.enable = true;
+    nix-ld.enable = true;
   };
 }