What is nostr:npub1mlnersd9cup2n3p5xrytccgfa73p4resxe5a2ljq9rez2ancr8usmnu7x8? It seems to be some kind of bitcoin mining game built on nostr?

I found it because they donated 10k sats to noStrudel and showed up on the support page

https://cdn.hzrd149.com/f511b00365d474a955008e99d7351f03f83e92bcb50cc60b7300b178c9b4b044.webp