I make software like writing a letter — with purpose, for people, with room for mistakes.
Hi, I'm Bang. I build mobile apps, macOS tools, and small games — usually solo, always with intent. I believe clean architecture and thoughtful detail are the things users never see but always feel.
Four things I've shipped & keep nurturing.
HOLDLINE — One tap. Hold your nerve.
A one-tap reflex puzzle about knowing when not to tap — every TICK flips a switch and burns energy.
Lumo — One calm puzzle a day
A daily numberlink puzzle — connect matching dots, fill the grid, keep your streak. Offline, no account, no pressure.
NookKeep — Shoot & Forget. Remember Every Nook.
An offline-first digital vault for iOS & Android — snap a photo, type a location in 2 seconds, and find your key items instantly with local AES-256 encryption.
Ziplings — Merge & Unzip: Cozy drop-merge puzzle with a twist
An offline-first, single-player cozy mobile drop-merge puzzle for iOS & Android — Drop round fuzzy creatures, merge through 11 tiers from cute to cursed, and tap the zipper to unzip and clear bin space.
This month, I'm…
to ship a small
challenge daily
— b.