Had a bit of fun flying around spraying seeds everywhere. Obviously a bit unfinished and I really didn't feel like I needed to spend the entire 10 minute timer playing. Felt like I pretty much got the entire experience in a minute or two.
Seems like there might be a few more issues to debug in bevy_voxel_world.
I eventually succumbed to the macos beachball of death (app hung, but didn't crash). This happened abruptly, with things seemingly going smoothly beforehand. I had spent some time spraying, and stopped moving for a bit and everything just hung.