React Native/Expo and Supabase Developer

I am looking for an experienced React Native/Expo and Supabase developer to collaborate on Lifeboat, an existing social networking app for seafarers. The Android app is already built and running, with features including authentication, profiles, social feeds, stories, Q&A, private/group messaging, audio calls, push notifications, ship-based connections, port check-ins, nearby users, maps, and a secure document wallet. This is not a build-from-scratch project. I need someone to understand the existing codebase, improve performance, fix bugs, complete additional features, and eventually make the app compatible with iOS. Please begin your proposal with "LIFEBOAT" and include relevant projects, hourly rate, and availability.