The app is a character sheet for a #ttrpg based on a custom game system my friends and I have been evolving since around 1985. These days I suppose you could compare it somewhat to the #fate system a little?
I asked the AI to create it using #blazor, and it chose the #webassembly option. I'm not sure that's correct, but I suspect the AI can easily convert it to Blazor server if necessary.