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 answer is…
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.
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 of its…
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 to that…
Opus 4.7 vs GLM 5.1: is mixing models worth it?
A couple of months ago, I compared Opus vs GLM by having both of them do a task for me. It's not that surprising that Opus was best. But what…
