@provoost do Castopod links result in an inline player? https://bitcoinexplainedpodcast.com/@nado/episodes/bitcoin-explained-79-the-witness-discount
Ok, so @a963f2d1 (which I use to host Bitcoin Explained) is doing something in their HTML that Mastodon parses in order to produce an inline player. @fountain_app should do that too, cc @merryoscar.