Pat ribs dry with paper towels. If not already done, remove the thin membrane attached to the underside of the ribs by sliding tip of a knife under the membrane, lifting, and loosening until it breaks. Use a paper towel to grab it and pull it off.
In a small bowl, mix together brown sugar, cayenne, smoked paprika, garlic powder, and pepper.
Season the ribs all over and then drizzle honey onto both sides of the rack.
Put steaming rack in the Instant Pot and place rack of ribs on it, wrapping them around the pot. If you're doubling this recipe, I recommend cutting racks into thirds and placing them on steaming rack.
Pour watermelon beer (or any other type of beer) into the Instant Pot.
Close lid and vent and press manual button to set to 22 minutes. Let pressure release naturally for 6 minutes, before quick releasing it the rest of the way.
Carefully remove ribs from Instant Pot, using tongs and/or a spatula and place meat-side-up on foil-lined baking sheet.
Brush ribs with Watermelon BBQ Sauce (or BBQ sauce of choice) and place in oven under broiler for about 5 minutes.