Build Log

Build Log

I automated the publishing too. So what does it cost, and what does it earn? (Final part)

The finale of five. The question everyone actually wants answered — including the number I'd rather not print. Automating the publishing: taking willpower out of consistency The system's publishing runs almost entirely by itself. * Daily reports — the system composes and schedules them to my Japanese blog. They

Build Log

Data breaks silently — the 4.5-month outage and the fake crash caught 90 minutes before publication (Part 4)

Part 4 of five. Stories from our incident log — because the real contest isn't building the system, it's noticing when it breaks. Most writing about system-building is about the building. What months of operation taught me is different: the real game is whether you notice

Build Log

Never delete a missed call — why the scorecard is built into the machine (Part 3)

Part 3 of five, on the system's heart: a mechanism that makes our own track record impossible to quietly edit. The world of investment content has a curious custom: wins get told again and again, while misses quietly disappear. You've seen the post that says "

Build Log

What happens when you let AI build your stock research system (Part 2)

Part 2 of five. In Part 1 I confessed that most of this system's code wasn't written by me. This is what that actually looks like day to day — what worked, what didn't, and the rules we had to invent along the way. The

Build Log

While I sleep, an AI checks 3,900 Japanese stocks (Part 1)

This is the English edition of a five-part series originally published in Japanese, documenting how an individual investor — not a programmer — built an automated research system for the Japanese stock market together with AI agents. Failures included. Here is a strange fact about the Japanese stock market: it has