The project is under development. This will be a playing card game for 2-4 players. It will utilize Cards On Table package which is also not complete yet.
When the project is done, it will be deployed to a server with free access, so anyone will be able to start a game and invite players to join by sending them a link.
Rules of Deberts and more information will be added later. There is an article on Wikipedia about the game, but currently only in Ukrainian and Russian languages.