Today's guest recently sold his company, FeedbackPanda, but instead of disappearing to an island, I've seen him all over Twitter, all over his blog, all over Indie Hackers helping people. In this episode, I talk to Arvid Kahl (@arvidkahl) about how involuntary reciprocity built his audience and how Indie Hackers can do the same. We'll dig into his new book, The Embedded Entrepreneur, to break down how he co-developed and grew his businesses through audience engagement.