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The Main Thread

Markus Eisele, Alex Soto Bueno

The Main Thread publishes practical, opinionated articles about modern Java, Quarkus, and real-world system architecture.

Platform
Substack
PricingOnly free issuesPublishesDaily
Issues436SubscribersRead the-main-thread.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

Build Your First Real Java RAG Pipeline with Quarkus and Docling

I do not like RAG demos that start with clean Markdown. That is usually where the hard part was quietly deleted.

29 hours ago
2
2

How to Run IBM Bob on a Remote Linux Machine from Your Mac

Pointing IBM Bob straight at your laptop is the fastest way to get started. Open the editor, load a project, ask Bob to inspect some code, and it immediately feels useful. There is no extra infrastructure, no remote machine, and no SSH setu...

2 days ago
4
0

Stop Letting AI Guess in Your Java Repository

A ticket says “add CSV export for cargo itineraries.” That sounds small until an AI coding tool starts working on a layered Jakarta EE codebase without a map. Now the real problem shows up. Which service already owns itinerary lookup? Which...

3 days ago
2
0

Build a Digital Credentialing Platform with Quarkus

Most badge systems look simple at first. Store a learner row, attach a PNG, send an email, done. That works until the first real trust question shows up. Who issued this credential? Was it an a partner accidentally, or deliberately, issue 1...

4 days ago
2
0

Authors

The writers behind this newsletter.

  • Markus Eisele

    I’ve spent 20+ years helping Java systems adapt without breaking. Here I share the architecture, tools, and thinking behind that work. Java Champion · Developer · IBM Research.

  • Alex Soto Bueno

    IBMer, Java Champion, Teacher, Radio Collaborator in Onda Cero, and Writer of several books for O'Reilly and Manning

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