So, since last updated, got SR1 and SR2 in to a really good state, where they're running smoothly under Mac, Windows, and Linux. I've reached out to Marco about it, and waiting to hear back.

Meanwhile, we've been doing a TON of work on SR3, and have things where we can actually play. There's still a ton to do, but, at the same time, we're in a great spot. This is probably the farthest along we've ever got things. I am excited about it.