you can easily find a content creator’s channel id by browsing to their channel page on https://yewtu.be and checking out the url.
you can then put that into a file which will be interpreted by an rss feed reader.
newsboat, for example, would use the following format (using LearnLinuxTV as an example):
https://www.youtube.com/feeds/videos.xml?channel_id=UCxQKHvKbmSzGMvUrVtJYnUA YouTube "~Learn Linux TV"
whereas an app like feeder would require an opml file:
<?xml version="1.0" encoding="UTF-8"?>
<opml version="1.1">
<head>
<title>
Feeder
</title>
</head>
<body>
<outline title="Linux" text="Linux">
<outline title="Learn Linux TV" text="Learn Linux TV" type="rss" xmlUrl="https://www.youtube.com/feeds/videos.xml?channel_id=UCxQKHvKbmSzGMvUrVtJYnUA"/>
</outline>
</body>
</opml>
what OS do you use with syncthing? because (for me) on ubuntu, it won’t sync my video files between a computer and 2 android devices, and on fedora it won’t sync text files correctly (i keep getting sync conflicts)