I bottle but have been looking at those oxybars.
Do you just need gas in and a party line to pour it from (if going basic with it?)
I need to check dimensions of my fridge I think as it's only small.
I use a party tap. For serving away from home I use a mini reg and 16gm co2 bulbs, 1 bulb is enough to empty 8ltrs of Lager. If at home I just hook up my Co2 cylinder but have also used a Sodastream bottle.