Baris Hamil developed the Netplay Client Index Retrieval feature for the libretro/RetroArch repository, focusing on enhancing multiplayer client management and coordination. Using C programming and network programming skills, Baris implemented an API that allows retrieval of the local player's netplay client index, supporting scalable multiplayer sessions and improving debugging of netplay flows. The work centered on exposing client indexing functionality, which helps reduce synchronization issues and lays the foundation for more robust multiplayer experiences. Throughout the month, Baris maintained clear commit messages and issue references, ensuring code traceability and maintainability while contributing to the reliability of RetroArch’s netplay subsystem.