I think that makes you the first to see either of the extended endings, well done!
We're using simple Websockets to talk to a server running Partykit on Cloudflare, where we're just storing some basic stats about how many people have played, the points that have been revealed on the memory, etc. We'd definitely love to do more with the idea in future, potentially bringing in statistics based on what choices people have made, in-game probabilities based on play data, etc.
Thanks for the kind words!