Flying Fish’s M.O. has been hyper-local since the days when founder Lyf Gildersleeve peddled his fresh catch out of a mobile truck on SE Division. Now the seafood underdog has upgraded to a brick-and-mortar six-seater inside NE Sandy’s high-end Providore Market. Inside the small brick-walled bar, a rotating line of just-shucked oysters on the half shell awaits, along with house made smoked fish platters, Dungeness crab cakes, tuna poke, and fresh seafood soups.