Lidraughts is a rewrite of lichess/lila for international draughts (on a 10X10 board), including the variants Frisian draughts, Antidraughts, Frysk! and Breakthrough.
It features live games, computer opponents, tournaments, simuls, tactics, coordinates training, studies / shared analysis, forums and teams.
Computer opposition and analysis is made possible by Fabien Letouzey's great engine Scan 3.0, supporting both standard (international) draughts and breakthrough.
The UI is currently available in 13 languages, translated with a varying degree of completeness: English, Dutch, German, French, Spanish, Italian, Greek, Polish, Russian, Portuguese, Czech, Ukrainian; and out of respect for Frisian draughts, also in Frisian!
Plans for the future include adding an opening explorer and tablebases, and possibly more variants.
The source includes a draughts implementation of scalachess in modules/draughts. The UI component chessground is implemented for draughts as ui/draughtsground.