Slipstream chests to push/pull items to belts. Chest connects to adjacent inventories to: Pull from adjacent inventory and push to belt or Pull from belt and push to adjacent inventory.
I'm using your mod mostly to push/pull from logistic chests. I also tend to put alot of roboports around my logistic chests. But it seems that interface chests also pulls construction and logistic robots out of the roboports when placed next to it, which is kinda annoying if you're not watching closely when placing chests and roboports.