This was a neat little simulation!
I think the codex book got stuck the first time I played, but on my second play, it filled up with all my shapes nicely ^_^
I wasn't sure if I was expected to guide the formation of particular shape combinations myself, but I enjoyed just watching them do their thing.
This feels impressive for a first game. Well done!
One other thing to note is that your executable does not have permissions on Linux. It would be good to make a note on your jam page that Linux users will need to set executable permissions in order to run the game.
This is something that is specific to Unix-like operating systems and their filesystems. When loose files are uploaded to Itch, they can not preserve these permissions. When included in a zip file, those permissions can be preserved, but they can't be set from Windows. If you are on Windows and would like to try managing that yourself, I made a tool that can help with that.