Thomas Kuntz contributed to the xlang-ai/OSWorld and opencollective/opencollective-frontend repositories, focusing on backend and frontend reliability over a two-month period. He enhanced Gemini model compatibility by updating agent logic to dynamically support multiple Gemini model names and versions, using Python for backend development and prompt engineering. In addition, he addressed prompt string formatting issues, eliminating syntax warnings and ensuring consistency across prompt definitions. On the frontend, Thomas improved user experience by correcting grammar in email sharing explanations and fixed shell scripting errors related to Thunderbird task profile paths. His work demonstrated careful attention to code quality and maintainability.