nostr:npub18gp8p84hjmjh9zejdlyqqcg22sj6x3qra0q2ng4v6cxxg95sav8q0mcg5e also walked nostr:npub1y3rpsk6y59ujjv3z8p7gm4watw2cqrp55n9aqw3vfpt9vq465qmswukemk through how to self-host using musicsideproject.com
You host everything on your website, submit it to podcastindex.org and them any podcasting 2.0 app like Fountain, LNBeats, Podverse etc. can play them.