Migrating to Jetpack Compose: a step by step journey

Some time ago, I decided to migrate Secure QR Reader to Jetpack Compose (in the rest of the article, I will call it Compose, for brevity). QR Reader Secure is a simple QR Reader that I developed some years ago after a failed search for a simple and secure reader for my parents that doesn’t require sneaky, strange, and useless permissions. The app was basic and fully working with the old View system, but I wanted to move to Compose to experience the entire migration process.