Authentication between microservices is one of those things that seems simple until you actually try to implement it. We went through 4 different patterns over 18 months. Each one solved some problems …
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Our Node.js API was restarting every 6 hours due to memory leaks. Took me two weeks to find the bug. It was a single …
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We were spending $12,000/month on Redis before I realized we were doing it completely wrong. Not “slightly inefficient” …
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So here’s the thing nobody tells you about JSONB in Postgres: it’s fast until it’s not. We migrated our user preferences …
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Took me six months to actually understand RSC. Not the “I read the docs” understanding - the visceral “oh THAT’S why” …
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Our CI pipeline was embarrassing. Every PR took 8+ minutes to build a Docker image for a Next.js app. Developers …
Read Article →Rate limiting seems simple until it isn’t. We thought we had it figured out - Redis counters, sliding windows, the …
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Generics in TypeScript are one of those things that click suddenly or not at all. I spent months copy-pasting generic …
Read Article →Indexes are supposed to make queries fast. Sometimes they make them slower. Here’s what I wish someone told me before I …
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Everyone tells you to avoid git rebase. “It’s dangerous!” “You’ll lose commits!” “Just merge!” I used to think that too. …
Read Article →We send about 10 million webhooks per day now. Started at 100K/day a year ago. Thought it would scale fine. It didn’t. …
Read Article →Found our AWS access keys in a public GitHub repo last month. Fun times. Here’s how it happened and what we actually did …
Read Article →GraphQL makes it stupidly easy to write queries that murder your database. Our homepage was hitting the database 2,031 …
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