Thiago focused on improving maintainability and reducing technical debt in the OpenModelica/OpenModelica repository by refactoring the OMEditLIB component. He systematically removed all Transmission Line Modeling (TLM) references, including dialogs, icons, and internal logic, to streamline the codebase and eliminate deprecated features. Using C++ and Qt, Thiago applied disciplined code cleanup and refactoring practices, ensuring that the OMEditLIB component became easier to maintain and less prone to future issues. His work addressed a longstanding bug, reduced maintenance complexity, and contributed to the stability of the project, demonstrating a thoughtful approach to risk reduction and long-term code health.