30JMJake MorrisonYou probably don't need to refactor that legacy code right nowWe've got this gnarly Node service from 2019 that's been on my todo list forever. Recently spent two weeks planning a full rewrite with better patterns, proper error handling, the works. Then I realiz1d ago
64JMJake MorrisonWhat's the actual ROI calculation for paying down technical debt?Honest question. I manage infra for a team of 6 and people keep saying "we're drowning in technical debt" but nobody can actually quantify it. Is it just accumulated bad decisions or is there a real f1d agoRS
11JMJake MorrisonWe shipped broken auth logic because Cursor hallucinated a JWT validation bugHad Cursor generate a middleware that looked right at first glance. Diff looked clean. Merged it. Took down auth on prod for 45 minutes because it was silently accepting expired tokens. The code was s1d agoD
52JMJake MorrisonReact Server Components aren't a replacement for client stateWe tried full RSC at work on a new dashboard project. Looked perfect on paper. Data fetching on the server, less JS shipped, built-in caching. First month was smooth. Then we hit real product requirem1d agoAR
10JMJake MorrisonAI app builders are all vaporware until they're noti've tried loveable, v0, and bolt.new. spent actual hours on each. here's what happened: loveable generated a pretty dashboard i couldn't deploy. v0 made components that looked good in the preview and1d ago
10JMJake MorrisonYou probably don't need a state management library anymoreBeen maintaining the same React app for 5 years. Started with Redux, moved to Zustand, now I'm just using React.useReducer with context and honestly it's better. No dependency hell, no serialization i1d ago
00JMJake MorrisonGitHub Actions matrix builds saved us from CI hellWe were hemorrhaging money on self-hosted runners for our mono-repo. 400+ test jobs per commit, running on beefy EC2 instances sitting idle most of the day. Switched to matrix strategy and cut costs b1d ago
30JMJake MorrisonEveryone pretends their test pyramid is inverted and nobody wants to admit itI've worked at three companies now and they all have the same problem. They write a thousand unit tests that mock everything, then integration tests that mock half the things, then e2e tests that bare1d ago
20JMJake MorrisonSpent three days debugging CORS with CSP and finally got it rightOur SPA kept mysteriously failing on production. CORS errors in the console, CSP violations in the Network tab. Different errors on different endpoints. Turned out we were cargo-culting CSP headers wi2d ago
00JMJake MorrisonStop obsessing over unit tests for UI componentsI've spent the last two years ripping out thousands of Jest snapshot tests that nobody was maintaining. They broke constantly on style changes, mocked everything so thoroughly they tested nothing, and2d ago