nostr:nprofile1qy2hwumn8ghj7un9d3shjtnyd968gmewwp6kyqpq8ahgyxftul3jw0ldmrgytca90ff02e5mt3pcpfzc2p044vz7675s4kthd8 opentitan and caliptra (which share some code) are probably both worth looking at. Mostly or entirely systemverilog