DevPulse Zwolle

🚗 Parking
You can park at the De Makersfabriek parking lot; enter the old Philips terrain via the McDonald’s. The meetup is in building ZF (Het Ketelhuis). Or use the following link:
Google Maps

Back to the Future: Building a RAG-Powered VR Time Machine
Imagine stepping into the streets of Utrecht in the 1500s. Now imagine having an all-knowing guide who can answer any question about the monuments around you.
We built a browser based VR application that gives users a 360-degree historical view of Utrecht on their phone or in a VR headset, where they can ask questions about the monuments around them. The answers are generated using Retrieval Augmented Generation, combining spatial context from the 3D environment with historical texts written by archaeologists.
In this session we will show how we built this time machine using Spring Boot, Ollama, Docling, LangChain4J, React, Typescript, cloud based LLM and LangChainJS. More importantly, we share what we learned while building the RAG pipeline: extracting text from archaeological reports, chunking sources in meaningful ways, improving retrieval quality, preventing hallucinations, and engineering context-aware prompts in the frontend.
After the presentation you can visit Utrecht in 1528 and the following centuries yourself and talk to our guide!

✨ Sponsors
DevPulse Zwolle is hosted by CloudProud and powered by ZWINC & DDZ. ZWINC helps entrepreneurs grow their start-up from idea to business.

🚗 Parking
You can park at the De Makersfabriek parking lot; enter the old Philips terrain via the McDonald’s. The meetup is in building ZF (Het Ketelhuis). Or use the following link:
Google Maps

✨ Sponsors
DevPulse Zwolle is hosted by CloudProud and powered by ZWINC & DDZ. ZWINC helps entrepreneurs grow their start-up from idea to business.