Thanks, I went with the suggested webdav route, this is fine for now.

Thanks for the explanation. Would that break nextcloud if i changed the owner of the folder?

great, looks promising, i'll keep an eye on it as well! Problem for me seems to be invidious not creating a valid rss feed for playlists. I managed to setup yt-dl to watch a youtube playlist (these are valid), but not for invidious.

my plan was: add video to invidious playlist > trigger ytdl to download video from the watched playlist > sync video to phone > add directory to antennapod.

Moe Memos is a pretty nice self-hosted solution as well. https://memos.moe/