Thon has been chugging away at these rules for a while now. Just shy of 3 years, apparently, since they started, the completed rulebook is now available, for free, over on their website.
Pre-orders for the physical version are also available.
From the post:
Just a few weeks shy of 3 years to the day. From scribbling ideas in a Word doc to a cancelled Kickstarter to Final printed product. I am happy to say the Rulebook is complete and available for free download on the Downloads page and preorder in the Store. (ETA Feb1)