During March 2025, Hien Vien developed a backend feature for the ethereum-optimism/infra repository, introducing a configurable option to bypass the 'is syncing' check in proxyd-backed backend services. This addition addressed operational needs for flexible deployments across multiple environments, allowing teams to intentionally skip syncing checks when required. Hien implemented the feature in Go, focusing on backend development and system configuration, and ensured reliability by adding an integration test and a dedicated configuration file. The work reduced deployment friction and supported faster incident response, demonstrating a thoughtful approach to maintainability and test coverage within a focused, single-feature development cycle.