During May 2025, Angel Alonso focused on improving endpoint reliability in the Automattic/vip-go-mu-plugins repository. He addressed a critical bug in the file service API client by refactoring its configuration to use a full URI, replacing the previous endpoint variable. This change involved updating the default to include the https scheme, ensuring that requests were constructed with the correct and secure URL across different environments. Working primarily with PHP, Angel applied his skills in API integration and configuration management to reduce URL construction errors, resulting in more robust cross-environment behavior. The work demonstrated careful attention to configuration detail and reliability.