Walkout
A boxer’s ring entrance before an interview. My name against the round and the tale of the tape in my own numbers, then the lights go down and an announcer reads my record before the bell. Every number is real.
Lekjai
叻仔 (lek jai) is Cantonese for “clever kid”. It’s what you say when someone figures something out.
Lekjai is a one-person studio. I’m Jiawen Lai, a software engineer in Vancouver, and I build tools that help one person think clearly, practise hard and keep going. The first one runs my own days.
Prime building now
A personal operating system I built with Claude Code.
It holds everything in motion in my life, from interview rounds to chores, the gym and money, and turns it into one plan for the day. It preps me before each interview, keeps the lessons from my mistakes and checks whether I’m learning them. Every night it builds one improvement to itself, with a prediction it has to meet or the change gets reverted.
Pieces of Prime
Some of its parts, newest first.
The door
When I come back to the laptop after 45 minutes away, it opens full screen on the day’s hardest task instead of whatever I left open. Each deep session I finish becomes a star in this sky.
Glow
The system’s week, replayed. Every file is a light that flares when something writes to it. The orbs below are the background jobs, red when one failed.
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Pilot lights
Every Claude session and background job as a small light in the MacBook notch: working ones on the left, finished ones on the right until I look.
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Spar
Asks an interview round’s questions out loud, records my spoken answers and grades each one against what I planned to say.
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Lift
A gym logger on my phone that works offline. Every workout ends as a receipt from a little printer, with a new best in gold ink.