During June 2025, this developer focused on enhancing the prebid/prebid-server-java repository by updating its documentation to clarify build environment prerequisites. They revised the README.md to specify Java SDK 21 as the required version, ensuring that all contributors align with the current baseline and reducing ambiguity during setup. By leveraging Markdown for documentation, they standardized onboarding processes and contributed to improved build reliability across the team. Their work centered on clear communication of technical requirements, supporting Java 21 readiness and minimizing environment-related build errors. This documentation update streamlined developer onboarding and fostered consistency in the use of Java and Markdown technologies.