With Nostr it's also a good idea to have a custom follow list. For example I have a list called "Home" that has only something like 13 people that only post deeper thoughtful content that I enjoy - like @Lyn Alden ). Amethyst supports custom lists. A cool little app is Habits - essentially set some goals and have widgets on screen to quickly mark that you did the goal each day. Another app could be book reader: I enjoy reading books on my phone, so app like Moon+ reader (it has paid version, but I really like it). Not sure if this fits your definition. Get good music app for offline music and load the phone with a bunch of music you like. I like Shuttle. Get podcast app if that fits your definition - AntennaPod is now surprisingly good. And then obviously set up way to pay with bitcoin, so e.g. Phoenix and Coinos web app (for zaps)