Randy Xian
Hong Kong · 18
i'm randy — 18, 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.
experience
previously at Kimi (Moonshot AI). now back to building independently, testing ideas, and shipping things people can actually use.
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.