But yeah, Sandstorm has been in a state of "not dead but not moving fast" basically since the company went under; things picked up a bit in 2020, and I got oriented-enough on the codebase during that time to keep it floating along, but, per the post, it's never been easy going.
Anyway, I wish I were answering this question in 6 months time, when I'll be able to show off a variation of Tempest that is relatively usable and can do a few tricks that Sandstorm can't.