I'd love to see the Keizer pairing system implemented here on Lichess.
I am a big fan of it, I met in person Sevilla's author JP Hendricks in the Netherlands, I introduced Keizer in Italy since 2004,
Since then I've managed dozen of tourneys, every player appreciated that once joined the club in the weekly meeting they were going to play a tourney game FOR SURE, no more forfeit wins of boards 50% empty (or 100% sometimes!)
I am a big fan of it, I met in person Sevilla's author JP Hendricks in the Netherlands, I introduced Keizer in Italy since 2004,
Since then I've managed dozen of tourneys, every player appreciated that once joined the club in the weekly meeting they were going to play a tourney game FOR SURE, no more forfeit wins of boards 50% empty (or 100% sometimes!)