Hm. The
feed for the complete channel also seems to contain only 15 elements, which certainly isn't complete, either…, although the channel (
https://www.youtube.com/c/YAPCNA/videos) contains about 42 videos from between 2022-06-24 and 2022-06-24 (plus many more older ones).
Perhaps we need another challenge first: generate an RSS feed from the Youtube webpage for a playlist (or channel) 😛
(Update: biggest part of this second challenge probably is to overcome dynamic scrolling, and perhaps this is the challenge where YT's own feed generator fails)