Wow, I can't believe how many responses you have for this. Here are my 2 sats.

Here's how I do it.

I host my own RSS feeds and MP3s on my own digitalocean server.

I create my feeds with sovereignfeeds.com (SF)

You already have a lightning wallet so plugging that info into SF is a breeze.

I have over 30 podcasting 2.0 feeds. If you have any questions is be happy to help you.