During August 2025, Samyy focused on backend stability for the zanfranceschi/rinha-de-backend-2025 repository, addressing persistent connectivity issues between HAProxy and backend services. By migrating server communication from TCP to Unix sockets, Samyy resolved recurring 'backend DOWN' log entries, directly improving service availability and reducing downtime risk for critical API endpoints. This solution streamlined backend routing and simplified ongoing maintenance. The work involved hands-on configuration of HAProxy and Docker, leveraging expertise in system configuration and Shell scripting. Although the period centered on a single bug fix, the depth of the change demonstrated careful analysis and targeted engineering to enhance production reliability.