The Main Thread @The_Main_Thread

Slides from my @jcon_conference session this morning! JCON Chasing the Main Thread - Adventures in AI Assisted Coding speakerdeck.com/myfear/jcon-ch… #AI #Coding #Jcon @The_Main_Thread

Passwords are still everywhere. They don’t need to be. I built a passwordless login flow in Quarkus using magic links and Keycloak. Email → token → validation → session. Full tutorial for Java developers 👇

You don’t need a greenfield project to add AI. In this episode, Alex Soto takes an existing Quarkus app and uses IBM Bob to integrate LangChain4j — incrementally, safely, and without architectural chaos. buff.ly/LTYy8nV #Java #Quarkus #AI #LangChain4j #EnterpriseDev

Build your first reactive messaging app with Quarkus. I turned a classic “order → kitchen → notification” workflow into a fully reactive pipeline with channels, stream completion, and message transformation. No Kafka needed. Pure #Quarkus. buff.ly/46p0hKI #Java

I built a full Quarkus Actuator-style extension from scratch and documented the entire process. - Extension generator - Build-time processing - Runtime beans - Git + build metadata - Custom /actuator/info endpoint buff.ly/CyYPGlM #Java #Quarkus #DevTools #Observability

Ever wondered how to manage 100+ Java/Quarkus projects in one repo without losing your mind? I built a “Smart Matrix” workflow that: - Detects what changed - Picks the right JDK per project - Generates per-project status badges buff.ly/yzsx5K4 #Java #Quarkus #GitHub

✨ Java, but fun again. ✨ Quarkus, but explained clearly. ✨ AI, but without the nonsense. The Main Thread is your daily shot of hands-on Java: tutorials, demos, experiments, and the occasional rant about YAML. Subscribe here → the-main-thread.com

Your service can be green on dashboards and still dead to the business. 🧟 In this tutorial I show how to use Quarkus Business Score to detect these “zombie” apps: ✅ Real code ✅ Tie score to SLOs ✅ Alerts when value stops flowing 👉 buff.ly/kppuulB #Java #Quarkus

Java web apps without the frontend complexity? Yes, please. 🙌 In this tutorial I show how to use Quarkus Renarde for a full-stack task manager with Qute + Panache. 👉 buff.ly/ZD6Uwhw #Java #Quarkus #Renarde #FullStackDev #WebDevelopment

Your API deserves more than 200 OK. Here’s how I built a Coffee API with Quarkus + OpenAPI — complete with docs, security & auto-generated Java clients. buff.ly/xfMxc2F #Java #Quarkus #OpenAPI

Quarkus + Jackson + LangChain4j = Meme magic 🎉 Build a JSON-first API that: 👉 Accepts messy input 👉 Returns clean responses 👉 Auto-generates captions with a local LLM Tutorial 👉 buff.ly/7c0Whu2 #Java #Quarkus #LangChain4j #Ollama #AI

LLM calls can fail, stall, or overload your system. With #Quarkus + SmallRye Fault Tolerance you get bulkheads, retries & graceful fallbacks. Add LangChain4j + Ollama → resilience built in. 👉 buff.ly/LpfLd4d #Java #AI #Resilience

Java devs, want a fresh way to publish? ✍️ Build a static author site with #Quarkus Roq + Bulma — no Node.js needed. Step-by-step guide 👉 buff.ly/EC8gDrR #Java #Qute #StaticSites

Code coverage lies. Mutation testing tells the truth. Here’s how I used #Quarkus + #Java to expose hidden test gaps (and fix them). buff.ly/iwRes30 #SoftwareTesting #MutationTesting

Can beauty be coded? I built an AI tool that applies the Golden Ratio to your images — critique + overlay included. Made with #Java, Quarkus & LangChain4j. buff.ly/0WsO0R3 #AI #Design #GoldenRatio

2 seconds feels like a timeout. Turn your Quarkus REST endpoints into instant responses with built-in caching. Step-by-step tutorial 👉 buff.ly/tbXyjei #Java #Quarkus #Performance

Turn your database into a REST API in <5 minutes. ⚡ With #Quarkus + #ApacheCamel you skip the boilerplate and get instant results — live reload included. 👉 buff.ly/OkMdMhA #Java #APIs #DeveloperExperience

No cluster? No problem. Quarkus runs beautifully on your laptop. Here’s how to build a REST API, live-code it, and go native — step by step. 👉 buff.ly/2n5M4EG #Java #Quarkus #RESTAPI

Your API isn’t ready for the world until it speaks 🌍 + 😀. Here’s how I handled Unicode, normalization & emojis in a #Quarkus REST API with #Java. 👉 buff.ly/oXo32WD #WebDev #APIs

Life has no autoscaling. @myfear wrote about applying system design thinking to sleep, work, family & expectations — and why resilience matters more than perfection. 👉 buff.ly/ip9Vlls #WorkLife #MentalHealth