Yeah, kinda. From the page react was my best guess. I'm making a note on all games about the Engine used, I got an Other category which these go in.
Yes this was written with React, 3d parts with react-three-fiber and the poimandres Drei helpers/utilities.
I use React every day in my day job so it was a natural fit and since it's web-first it's perfect for gamejams. 🙂
Its interesting to see how fast it loads compared to most games made by engines.