Betcoin uses a DLC multisig-2-in-3 scheme, basically implemented using Miniscript, a technology that allow the platform to perform the bets using Bitcoin. The ideia is like an original betting platform in a way that is possible to bet in any theme (users can create one) and against other people, based in a orderbook, the features and implementationsn are listed in this ReadMe file of github and the presentation in the github also.