Rather impressed with the software preservation for the love live school idol festival games.

All the game assets were saved and are on a cdn, or you can mirror them locally. Reverse engineered game servers have been written. A modified app is available which connects to localhost, letting you run the server on the same device.

Amusingly, the cdn is faster than the one the game used in live service. Combined with the server on localhost, the preserved game performs a lot better than the original did.