Worked on the Anuken/MindustryServerList repository to deliver a new sandbox server configuration, BE4HOCTb, expanding the server list’s flexibility for users. Focused on data management and server configuration, the feature enabled more effective testing and experimentation by allowing users to quickly validate sandbox scenarios. The implementation was closely tied to issue tracking for traceability and future enhancements, ensuring a clear workflow from code change to deployment. Leveraged JSON for configuration management, integrating the new option seamlessly into the existing system. No bug fixes were addressed during this period, as the primary focus remained on robust feature delivery and integration.