Preheat oven to 425°F. Line a rimmed sheet pan with foil and place a wire rack inside.
Dry the wings very well with paper towels to help them crisp.
Toss wings with baking powder, salt, pepper, and garlic powder until evenly coated.
Arrange wings on the rack, spacing them out. Bake 40–45 minutes, turning halfway, until deeply golden.
Make the glaze: In a small saucepan, combine honey, sriracha, soy, butter, vinegar, lime, ginger, garlic, and sesame oil.
Warm over medium-low heat for 3–4 minutes, stirring, until glossy and slightly thick. Keep warm.
Transfer hot wings to a large bowl. Pour most of the sauce over and toss to coat.
Broil 2–3 minutes to set the glaze, if desired. Toss with remaining sauce.
Finish with sesame seeds and green onions. Serve immediately.