Hai is a software engineer and indie developer based in Vietnam. He loves building small apps for his own daily life — tools that solve real problems he actually faces.

He usually builds with TypeScript and Swift for iOS and macOS apps. He does not stick to one language — he learns what he needs when a real problem shows up. Right now, he is shipping indie products such as Trolly and Cofra.

When he is not coding, he likes learning new tech, playing badminton, and listening to music.