It seems like Andreas abandoned SerenityOS and Jakt with it, and moved on to Ladybird. The language died with this move. The project was always very clearly “for fun” so I don’t see any harm or foul here. I also got the sense that there was a falling out between Andreas and some members of the community, like JT and one of the major JavaScript engine contributors whose name I can’t recall right now. Or maybe it was just that the passion for this particular project dried up.