The third and final day of the hackathon. During this hackathon I learned a lot about Quarkus, LangChain4j, Grafana MCP and many other things. Read this blog to read the progress of the last day and my conclusions of the hackathon.

The second day of the hackathon was a mix of activities. Next to the hackathon, we had a climbing outdoor activity. In this blog post I will share the results of the hackathon on day 2 and some pictures of the climbing activity.

Together with my colleagues of OpenValue Utrecht we are having a hackathon at a nice place in the south of Belgium. The goal of the hackathon is to build a monitoring buddy, a chatbot that can help you with your monitoring and observability questions. I will use Quarkus, LangChain4j, Tools and MCP in combination with Observability to build this chatbot. This blog post describes the progress on Day 1.

The first of the Application Observability Code Challenges step by step revealed. The application has some unexpected behaviour. In this post I will explain step by step what you can learn from the metrics and how you can improve the observability of the application to finally find the real problem.

The first of the Application Observability Code Challenges is now available. A simple Spring Boot application with a REST endpoint implemented in Jersey/JAX-RS This application has some unexpected behaviour. Can you find out what is happening based on the observability data? Can you improve the observability to prove that a fix really fixed the problems?

Application Observability Code Challenges are a way to challenge yourself to improve the observability of a sample application. Of course, this application has some surprises that you probably did not expect. These challenges will help you develop an observability mindset and become more familiar with your observability tools.