Worked on backend reliability in the cloudwego/eino-examples repository, focusing on stabilizing server startup processes using Go. Addressed a critical issue where the absence of the APMPLUS_APP_KEY environment variable caused a panic during initialization, which previously led to deployment failures and increased downtime. Implemented robust environment variable validation and improved error messaging, ensuring that startup errors are clearly communicated and easier to diagnose. This approach not only reduced deployment risk but also established reusable patterns for environment variable handling and error reporting. The work emphasized backend development best practices, prioritizing operational stability and maintainability over new feature delivery during the period.