there are modern products in this niche, and there is huge interest. the market certainly seems to be there (regium tried to defraud people for almost a million dollars i believe was the kickstarter sum before they got shut down).
there is squareoff [0], with new products currently in development (swap / neo)
then there was regium, an elaborate scam on kickstarter [1]
now there is phantom [2], which hopefully is not a scam. they at least posted some engineering details on hackaday [3]
squareoff has chess.com support, hopefully with lichess support coming (they are promising it, but has not yet happend). phantom claims working lichess support and to work on chess.com support
[1] https://www.chess.com/news/view/update-on-regium-chess
[2] https://www.kickstarter.com/projects/wondersubstance/phantom...