I understand the audiobook server, but what’s the use case for the podcast part? You replicate a podcast on your own server, in case the original goes away?
replies(7):
Some podcasts remove all of their backlog when they "sell out" and go behind a paywall, having them backed up prevents that. (How did this get made?[0] being one example)
Also some podcasts (BBC ones I think) add ads while you download, based on your country. Some of my No Such Thing As A Fish[1] episodes have Christmas themed ads in them because that's when they we're cached :)
[0] https://www.earwolf.com/show/how-did-this-get-made/ [1] https://www.nosuchthingasafish.com