Thanks for the video! Sorry, the tool is not very good for streaming (except for timelapses), because it takes time to slowly "evolve" the fill configuration over the course of a few minutes, or sometimes a few hours depending on the combination.
It typically starts out as a poor fit and then gets better and better as you let it run. It's the type of thing that one would leave on for a long time to see what it comes up with. Bananas take extra long for it to evolve into a proper fit. Only the recursive block fill algorithm is suitable for watching in real-time, but it only fills with blocks.
I know it's probably not interesting to anybody except for AI nerds and myself, but it's an algorithmic itch I really wanted to scratch. I'll make something more interesting for next time!