During October 2025, Benjamin Koelbl focused on streamlining environment configuration within the ValveSoftware/Proton repository. He removed deprecated XIM support remnants, specifically eliminating WINE_ALLOW_XIM code paths, which reduced configuration fragility and maintenance overhead. Working primarily with Python and leveraging his full stack development skills, Benjamin’s changes simplified Proton’s environment setup, improving compatibility and laying groundwork for future input-method refactoring. Although the scope was limited to a single feature and did not involve bug fixes, the work demonstrated careful attention to codebase hygiene and forward compatibility, addressing technical debt and preparing Proton for ongoing evolution in input method support and configuration management.