Lichess has an API endpoint for their cached analysis, so they could have easily automated at least some of the new tree. Or they could have inserted a couple

Lichess has an API endpoint for their cached analysis, so they could have easily automated at least some of the new tree. Or they could have inserted a couple of `if` statements into Stockfish, recompiled, and simply analyzed the root position. Even calling this a "paper" is a stretch. I'm usually against twitter post threads as content but that seems about the level of analysis that's actually present here.