Podcasting is the most widely used application of the RSS protocol. After creating a podcast episode, the creator uploads it to the hosting provider's server, which hosts and distributes the content by generating an RSS feed for the creator. The creator then submits the RSS feed URL to certain podcast platforms, such as Apple Podcasts. Other podcast players can discover the RSS feed through podcast indexes—sourced via user submissions or web crawling—and then automatically fetch episodes via the feed. In this way, Nostr is to text and images what Podcasting is to audio, providing decentralized distribution tailored to its medium.