It's not available yet. I believe it is feature complete though, but I still need to create a sample game (for testing, missed improvements and to have samples for the end user), document everything, and see how to go about distribution, as I plan to monetize it in some way (probably sell this on itchio?). I have some plans to make parts of it free for everyone (for example the control customization part I posted here). Either way, I'll update here and on the discord when I have more concrete information on release.