try `isRelease` too, no effect

obelisk/default.nix

@@ -32,8 +32,11 @@ let
       android.displayName = "Private Storage Mobile";
       android.resources = ./frontend/android/res;
       android.iconPath = "@mipmap/ic_launcher";
-      # This definitely works but removes our ability to build apks
-      # android.gradleTask = "bundleRelease";
+
+      # This should work but even if it does, putting the config here removes
+      # our ability to build apks.
+      android.gradleTask = "bundleRelease";
+      android.isRelease = true;
 
       # We use magic-wormhole which depends on saltine which depends on libsodium.
       # We have to explicitly mention libsodium here to get it included in the
@@ -57,18 +60,10 @@ let
       };
     });
 
-# # Can be written like this...
-# ghc = self:
-#   with optics fn;
-#   path
-#     ["haskell" "packages" "ghc883"]
-#     (super: super.override {
-#       overrides = hself: hsuper:
-#         { patat = self.haskell.lib.unmarkBroken hsuper.patat;
-#         };
-#     });
-
-  inherit (import "${(builtins.fetchTarball https://github.com/masaeedu/nix-optics/archive/028b4e0f721d902aa97bc3535cb3d265bfc53abb.tar.gz)}/utils.nix") optics fn;
+  inherit
+    (import "${(builtins.fetchTarball https://github.com/masaeedu/nix-optics/archive/028b4e0f721d902aa97bc3535cb3d265bfc53abb.tar.gz)}/utils.nix")
+    optics
+    fn;
 
   makeReleaseBundle =
     let
@@ -81,6 +76,7 @@ let
             # "assembleDebug" or "assembleRelease" to build a debug or release apk
             # (respectively) or "bundleRelease" to build a release bundle (aab).
             gradleTask = "bundleRelease";
+            isRelease = true;
           });
 
       # Change the final installation instructions to work with the aab we