Thomas Froment
Program Manager, Development Tools
Paris, France
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Thomas Froment is the Program Manager for Development Tools at the Eclipse Foundation, where he oversees all tooling projects, including Eclipse Theia and Theia AI, as part of the Cloud DevTools Working Group. He also leads the Open VSX and Eclipse IDE working groups.
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Theia AI Live Demo: Air Gapped AI for Developer Tools and IDEs
AI is rapidly becoming a default capability in developer tools, but many teams still face the same constraints: vendor lock in, limited transparency, and the inability to run AI in restricted environments.
In this session, you will see a live demo of Eclipse Theia and Theia AI, an open source platform and framework to build AI-enabled developer tools: IDEs, domain specific environments, code-centric workbenches, and cloud or desktop applications embedding editing, navigation, and automation workflows. Unlike closed solutions, Theia AI is designed to be extensible and provider-independent. You can integrate chat, completions, and agent-like workflows while keeping full control over how models are connected and what data is shared.
The demo runs in a fully air gapped setup using local LLMs only, demonstrating AI-assisted coding and navigation without sending prompts or source code to external services. We will also show how Open VSX, the Eclipse Foundation’s open source extension registry, enables distribution and reuse of extensions, turning Theia from a framework into a practical foundation for products and internal tooling.
You will leave with a clear architectural understanding of how to embed AI capabilities into developer tools that can fit both open innovation and enterprise constraints.
Resources:
https://theia-ide.org/theia-ai/
https://open-vsx.org/
Building AI-native Development Environments with Eclipse Theia and Theia AI
As AI-powered features rapidly become the norm in modern development environments, developers are increasingly faced with a critical question: how can we benefit from AI while keeping control over the tools we use, the models we trust, and the data we share?
Open Source Festival 2025 Sessionize Event
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