During May 2025, this developer focused on improving barometric pressure accuracy in the mrousavy/expo repository for Expo Go iOS. They addressed a rounding error in barometric readings by converting pressure units from kilopascals to hectopascals and implementing double-precision arithmetic, ensuring consistency with the sensors package. Working primarily with Objective-C and leveraging their expertise in mobile and iOS development, they delivered a targeted bug fix that enhanced the reliability of altitude and pressure data for applications dependent on sensor accuracy. The work demonstrated careful attention to data integrity and alignment across components, though it was limited in scope to a single issue.