Hi, thanks for your comment. The short answer is: there are no new newer versions and I'm not not planning to continue development. (but the full source code is available on github)
It started as a small prototype for jog in place + hand tracking and after adding several addtional features it became clear that the architecture did not allow to expand it much further with reasonable time invest. So at some point I just shifted my focus on other things.
I removed it from SideQuest because at some point a Meta Update seems to have broken the game and it did not work anymore for everybody who tried; I wanted to avoid that too many people try it and get frustracted with it just crashing.