If you want breaks (meeting) and can play consistently between them (like live) there is a sealed move system explained.
Anyway the biggest problem seems to get someone to play in the same schedule.
Note that the OP search is still a bit diffferent, more near an ultra short correspondance as a very long live, because of getting away and not so focused (work day) on the board.
But the minima in the range of correspondance time isn’t fitting the request at all.
Trying to figure what could be a fitting correspondance time setting even if it doesn’t exist on OGS.