Castopod is an open-source podcast hosting platform designed to give podcasters control over their content while supporting the latest podcasting innovations, such as Podcasting 2.0 features. It's a self-hosted solution, meaning that users can install and run Castopod on their own servers, offering them full ownership of their podcasts and data, unlike hosted platforms where the hosting service owns the platform infrastructure. Additionally, Castopod supports federation via ActivityPub, the decentralized social networking protocol. This means podcasts hosted on Castopod can be followed and interacted with from compatible social networks, broadening the reach and engagement of podcast content.