During October 2025, Slavafyi developed a persistent file logging system for the mhsanaei/3x-ui repository, enhancing backend reliability and operational transparency. Leveraging Go and system programming skills, Slavafyi extended the existing logging infrastructure to support file-based logs alongside console and syslog backends. This approach enabled debug messages to be written to a dedicated log directory, improving troubleshooting and auditability for the application. The work also included updating the in-memory UI buffer to integrate seamlessly with the new file logging structure, ensuring consistent log management across runtime components. The feature demonstrated thoughtful backend development and attention to maintainable logging practices.