TL;DR — Podcast Platform

Design a podcast platform like Apple Podcasts or Spotify's podcast feature that ingests content from millions of RSS feeds, hosts audio files, enables discovery, and provides a seamless listening experience. Unlike music streaming where tracks are 3-5 minutes, podcast episodes are 30-120 minutes long, creating different buffering, storage, and CDN strategies. Key features: Ingest and index podcasts from RSS feeds submitted by creators or discovered via directories. Continuous polling of RSS feeds for new episodes with configurable frequency.