DMDavide Mibelliincodeagents.hashnode.dev·May 21 · 8 min readFlutter vs React Native in 2026: I Built the Same App in BothI spent three weekends building the same app twice. Not as an experiment — I had a real decision to make. We're adding a mobile companion to one of our internal tools at work, a task management system00
DMDavide Mibelliincodeagents.hashnode.dev·May 19 · 10 min readThe AI Coding Agent Workflow That Actually Works After 1,000 HoursThe first time I gave an AI agent real autonomy on a production codebase, it confidently refactored a utility method that happened to share a name with a method in a Feign client interface six modules00
DMDavide Mibelliincodeagents.hashnode.dev·May 15 · 8 min readRAG in Production: What the Tutorials Don't Tell YouI built a RAG system that scored 91% on our internal eval suite. It retrieved the right chunks four out of five times in every benchmark we ran. We shipped it. Users thought it was broken. The gap bet00
DMDavide Mibelliincodeagents.hashnode.dev·May 12 · 6 min readSpring Boot JWT Authentication: The Complete Setup Most Tutorials Get WrongI've read probably forty Spring Boot JWT tutorials over the years. They all show you the same thing: how to generate a token on login, how to validate it on each request, and how to wire up SecurityFilterChain. And they all stop right there. What the...00
DMDavide Mibelliincodeagents.hashnode.dev·May 6 · 10 min readI Tested Claude Code, OpenCode, and Codex for 30 Days — Here's My VerdictIn March 2026, I made a rule: every piece of non-trivial code I write has to go through at least one AI coding agent before I commit it. Not for autocomplete — for the whole thing. Architecture decisions, test generation, refactoring, debugging. The ...00
