Pedro Castro worked on stabilizing and scaling the Google Meet installation flow within the calcom/cal.com repository, focusing on enforcing prerequisite validation and improving cross-page consistency. He implemented a gated installation process that requires users to connect Google Calendar before installing Google Meet, introducing clear error states and standardized validation visuals to enhance user feedback. Using React, JavaScript, and TypeScript, Pedro updated dependency components to accurately reflect unmet dependencies and disabled states, while expanding test coverage to reduce regressions. His work emphasized maintainable UI logic and improved reliability, addressing both infrastructure and user experience for install flows during the development period.