He is a full-stack developer that can do photoshop (http://hoang.rocks). Besides, he cares about Global Warming and the Douc Langurs.
He started an environmental NGO and thanks to it he once met with Ban Ki-moon, James Cameron and Al Gore.
His smartphone runs a ROM that he built from AOSP. He occasionally plays music with his rock band and records in his bedroom. He translates books and movies from English to Vietnamese in his free time.