My Dehumidifier is working great in the wine fridge.
The only downside is, that the combination of the wine fride with the dehumidifier in the inside creates super high energy costs. Its 50-70Wh vs. my approach with glycerol (5-8Wh).
Why is that? Because the peltier in the inside (dehumidifier) creates temperature increase which needs to be then removed by the wine fridge peltier.
With that said, It would be way better to either build the dehumidifier into the glass window OR my second thought is to buy a wine-fridge which is comming with two peltier elements (upper zone, bottom zone..) - the bottom zone peltier could be manipulated to use it as a dehumidifier. Benefit is, that just the cold plate stay inside the wine fridge and the warm side is outside. You may need to remove the inside fan (or shut it down) in order to get a cold enough temperature to the dew point.