What Mac software to assemble a podcast

macOS and Mac Apps


I've got all the components of audio, opening jingle, closing, interlude sound and actual audio (It's a DND actual play podcast), but for the life of me I don't know where to go next to put it all together and upload it.

It would appear GarageBand no longer supports podcast creation, though, having never used it I don't know what is missing.

What do you guys use to assemble your podcasts? Also, would be amazing to have something that I can record over the opening music with ducking on to introduce each show.

Thanks for any help you can provide.