Worked on the ValveSoftware/Proton repository to address a compatibility issue affecting a specific game by reverting a previous change that had disabled forced Large Address Aware (LAA). Using Python and applying skills in compatibility engineering and software reversion, the developer restored LAA functionality exclusively for appid 1621680, thereby improving game stability and performance for affected users. The technical approach involved narrowing the scope of the revert to minimize risk and maintain overall Proton behavior. The patch was implemented with clear traceability, ensuring that the change could be easily audited or reversed if necessary, and demonstrated careful change management practices.