hacked up a very weird little weird side project this weekend - TerraGen: a generator for self-sustaining terrariums! 

It uses an adaptation of the wave function collapse algorithm, which takes in rules such as "frogs like waterfalls", and uses that to create a probability distribution over things to add.

The prompt I use for generation is still pretty primitive - haven't had time to work on that.

Side note - would be cool to be able to make this database of terrarium creatures and their likes/dislikes permissionless so others could add stuff to it, is there any platform to do that?