Youtube channels have XML feeds (seems like Atom with some custom extensions), so it should be possible to follow channel's latest videos even without using their API at all.
eg. https://www.youtube.com/feeds/videos.xml?channel_id=UChWv6Pn...
eg. https://www.youtube.com/feeds/videos.xml?channel_id=UChWv6Pn...
A beautiful technical / engineering take on why Juicero failed, after he takes apart a brand new Juicero => https://youtu.be/_Cp-BGQfpHQ?t=2111