Hey HN — I'm Aaron, and I built Steadcast because I was frustrated that I listen to 15+ hours of podcasts a week and retain almost none of it. Steadcast is a native macOS podcast player (Swift, SwiftUI, AVFoundation — no Electron) designed around one idea: podcasts are how a lot of us learn now, but no podcast app actually treats them that way. What makes it different: • Learning domains, not genres. The app is organized around 10 knowledge domains (AI, science, history, philosophy, psychology, etc.) with 90+ editorially curated shows. No true crime, no celebrity gossip. * On-device…