Worked on both the element-hq/element-x-ios and matrix-org/matrix-rust-sdk repositories, delivering features and stability improvements focused on user experience and reliability. Addressed a crash in iOS 26 by refining scene connection logic, and enhanced timeline navigation with a Jump to Unread button and new-message badge using Swift and SwiftUI. Improved VoIP reliability by refining CallKit integration for missed and unanswered calls. On the backend, introduced fully read state tracking and multi-profile pusher support in the Rust SDK, leveraging Rust and FFI to enable accurate read-status management and robust push notification handling for multi-profile clients across devices.