@neauoire I'm pretty sure this is not what you're looking for, but there was an interesting line of research in the 90s to create circuits with FPGAs using self-modifying genetic algorithms. The results were kinda scary since they ended up leveraging inscrutable analog properties of the hardware instead of human-understandable digital logic.

https://www.eetimes.com/whatever-happened-to-evolvable-hardware/