I built this to ensure there is a known, provably fair protocol for coin flip gambling. I was initially going to turn this into a full gambling site for the concept, but I don't have the time to build it out, and several existing platforms could use it. If you have any questions, feel free to create an issue.
I plan to get the repo verified by community members so it can be trusted. If you would like to verify, please add your github name as a file in the verified folder.