AI
Six weeks of AI code review: what it caught and what it let through
The comment started with three words: This breaks prod. It was a PR of about five hundred lines -- in a repo I had just encountered, and I…
Posts
- AI
Plugins Are How You Ship a Claude Code Harness
I built a dojo where Claude Code tutors you and refuses to type your code. Making that refusal stick took four tries, and the result is a recipe for packaging any team workflow as a plugin.
- Advanced
MyJourney: create product demos without wasting a day
GemLab has several projects running at the same time, and all of them change from week to week. Then someone asks how Mother is doing, and the honest…
- AI
I built an AI agent for our World Cup betting pool. She beat all of us.
Memory and context engineering for a long-running AI agent: how BETanIA got a diary, a mood, grudges, and a compaction strategy - and won our World Cup pool.
- Ruby
How “Your CFPs Aren’t Good” Became Five Approvals at RubyConf
In April 2025, Tropical on Rails, the Rails conference in São Paulo, said yes to one of our talks for the first time. A few months later, one…
- Ruby
What Puma, Falcon, and Pitchfork teach you about Ruby concurrency
I went on a tour of Ruby concurrency while preparing a RubyConf talk on Ractors. Going in, I knew Puma, Falcon, and Unicorn. Coming out, I'd added Pitchfork…
