Can’t quite speak for the n100 but I got a n305 one of these “China PCs” it’s passively cooled (which was important since it’s running in my bedroom) and seems to have amazing performance for what I need (I put jellyfin on there). I’m quite happy after futzing around with ARM SBCs and external drives this just works so well.
Antennapod does offer that by hooking into the gpodder.net API.ive had varying success with gpodder.net but hosting that yourself (I host it as an app on my Nextcloud) is a breeze