spacecowboy/Feeder — reverse-engineered prompt

Build me a simple privacy focused Android feed reader in Kotlin.

I want people to follow their favorite websites and read the latest posts from RSS, Atom, and JSON Feed sources. It should work completely locally on the phone, with no account signup and no syncing to a remote service. Articles should be available for offline reading once fetched, and the app should notify the user when new items arrive.

Please make the app feel clean and modern with Material style screens, including a feed list, an article list, a readable article page, and basic settings. Include light and dark mode if it fits naturally. Add OPML import and export so users can move their subscriptions in and out easily.

Keep the first version focused and reliable rather than fancy. Make sure it builds and can be installed on a connected Android phone. Look up current Android docs online if you need to.