A social space for us by us is born in Brooklyn — The open floor thuds with the bass of music DJed by GabSoul, switching from Chance the Rapper’s “Ballin Flossin” to Disclosure’s “Voices.” Dishes clatter in the kitchen space as Angie Marin prepares food from her pop-up Wepa Arepa, while Alisa Bowens-Mercado’s Rhythm Brewing Company sets up its craft lager. A…