Building Buildhorn for Shipaton 2026: Week Two Progress

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It’s the 2nd week of Shipaton and I thought it was a good time to take a moment to document my progress on the submission.

Note: This is the 2nd post about my work towards shipping an app for the Shipaton 2026 hackathon. If you want to read from the beginning you can find the link to the first post here

As a recap I’m building a multi-layered application using the following technologies:

  • Kotlin Multiplatform (Shared Kotlin Library, handles networking, file storage and business logic)
  • iOS App (iOS app built using SwiftUI, focuses on the UI layer and consumes the Kotlin Multiplatform library for its business logic)
  • Firebase Backend (An all-in-one backend using Firebase Cloud Functions for endpoint creation / webhook event handling, Firebase Cloud Messaging for push messaging and Firestore for backend persistence)

Let’s start with what I have. I have a working app, complete with an onboarding flow...

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