// about
Why I Crossed Over
The story of an HR professional who typed his first terminal command and never looked back.
March 16, 2026 · 10 PM · Kuala Lumpur
Wai Hong Chin · Kuala Lumpur
The moment it clicked
I uploaded a company HR handbook — 4.3MB, dense with policy language — into the RAG system. Then I asked it a question about something that wasn't in the document.
The AI said: "The information is not available in the provided context."
No hallucination. No fabrication. No confident nonsense.
That sentence — that refusal to guess — was the most important sentence an AI has ever said to me. Because in HR, wrong answers destroy trust. If I tell an employee their medical leave entitlement is 60 days when the handbook says 14, I have created a liability, not a solution.
RAG doesn't guess. It retrieves, or it admits it doesn't know. That is the minimum standard for any system that touches people's working lives.
The gap no one is filling
AI engineers can build beautiful RAG pipelines. But they don't know what "EA 1955 Section 60A" means. They don't understand why Malaysian leave calculations differ for monthly-rated versus daily-rated employees. They have never sat across from a business owner at 2 AM explaining why a termination was procedurally unfair.
HR professionals understand all of that. But they think AI is ChatGPT — a black box on the internet that might leak their data. They don't know that you can run the entire thing locally, on your own laptop, with zero data ever leaving the building.
The gap is not technical. The gap is not domain knowledge. The gap is the bridge between the two — and almost no one is standing on it.
The philosophy
There is a Chinese concept: 跨界 (kuà jiè) — to cross boundaries. It does not mean abandoning where you came from. It means standing at the intersection where your old expertise meets a new capability, and building something neither side could build alone.
I am not leaving HR. I am giving it a new voice — one that can answer at 3 AM when no HR manager is awake, one that never forgets a policy clause, one that serves every employee equally regardless of their confidence in asking questions.
The best technology disappears into the work. A good HR AI assistant should feel like talking to a knowledgeable colleague, not operating a machine.
The invitation
This website is not a brochure. It is a workshop with the door open.
Every day, I document what I learn — the breakthroughs, the failures, the commands that returned errors I didn't understand. If you are an HR professional curious about AI, you will find a path here walked by someone who speaks your language. If you are an AI builder looking for domain problems worth solving, HR is one of the richest and most under-served.
I am evolving. The progress bars will move. And if you're reading this six months from now, I'll be further along than I am today. That's the point.
// career timeline
// where I am right now
Real-time progress. These bars update as I learn. Some are at 10%. That's the truth.