Further development and maintenance of JuPedSim as a central open-source software for simulating people flows., SUMO connection: (Re)design and implementation of a C++ interface to SUMO for seamless coupling of people and traffic simulation, New models & features: Implementation, refactoring, and integration of new functionalities, architecture-compliant, tested, and documented., Performance & code quality: Implementation of CI/CD, automated testing, code reviews, profiling/performance optimization, Web integration (nice to have): contributions to the React frontend (web-jupedsim) or the FastAPI interface in the backend., Development of topics for student projects (e.g., bachelor`s or master`s theses) and their supervision., Active participation in the JuPedSim community and initiatives such as deRSE with presentations at conferences and exchanges with other research software teams