The script reads a file named yt2feed.txt and outputs a file named yt2feed.ompl. The input file is a newline-separated list of YouTube channel URLs in @Handle fromat, ie :
$ cat yt2feed.txt
https://www.youtube.com/@3blue1brown
https://www.youtube.com/@AlphaPhoenixChannel
https://www.youtube.com/@animalogic
This works as of 2025-05-24. YouTube may update it's behaviour and break the script.