Randy Xian
Hong Kong · 17
i'm randy — 17, based in Hong Kong. mostly i'm trying to figure out what AI can actually do — where the edges are, what breaks, what's possible. vibe coding is how i ship. the apps are proof-of-work. high school is somewhere in the background.
right now
pushing the edges of AI — building with it, writing about it, running experiments on it. right now: exploring agent evaluation. after a year and a half of heavy daily use of AI agents, i'm trying to build a rigorous way to measure what they actually do to a codebase over time — not just whether they pass a test, but whether they make things better or worse. the iOS apps are what vibe-coding looks like over time, not the point.
into
vibe coding · iOS / SwiftUI · web · AI-native product building · foundation models · indie hacking · Hong Kong cha chaan teng · ramen · movies · finding a great tool nobody else is using yet
things i actually believe
- —ship first, refine later — a working v1 beats a perfect spec
- —age is not a credential. output is.
- —AI is collapsing the gap between idea and product. use it.
- —good products are discovered, not invented — find the real pain
- —building in public is the fastest way to learn
- —taste is a skill. you can train it.
selected work
i reply to everyone. send me a message — wechat or email both work.