Building (Open Source) Custom Dashboards Is Harder Than You Think

May 21, 2025 How we Built Scalable & Customizable Dashboards A technical deep dive into the core abstractions and architecture Steffen Schmitz On Day 3 of Langfuse Launch Week 3, we introduce customizable dashboards (docs): a powerful way to visualize LLM usage directly within the Langfuse UI. Whether you want to track latency trends, monitor user feedback, or correlate cost with performance, our new dashboards let you build the charts you need - right where you need them. And for those who prefer working in their own analytics stack, we’ve made the same querying capabilities available via our API (docs). For context: quick demo of the finished product In this post, I’ll take you behind the scenes: from our product thinking to the technical implementation, testing, and rollout—and share the lessons we learned in building flexible, real-time insights into your LLM pipelines. Motivation Customizable dashboards were among the most requested features within Langfuse. Early on, we had ... Read full article.