Worked on the Multi-Energy-Systems-Optimization/mesido repository to enhance build system configuration by updating Python version compatibility in setup.py. Focused on aligning the minimum supported Python version to 3.10 and setting an upper bound at 3.12, the work aimed to reduce deployment risk and ensure stable builds across active Python environments. The approach involved iterative exploration of interpreter support, with changes validated through concise, traceable commits. Using Python and build system configuration skills, the developer addressed environment compatibility and continuous integration stability, preventing unsupported interpreter runs and enabling broader adoption without introducing user-facing bug fixes during the period.