I tried to set this up in docker. It fails with an exception that I think is related to the Captcha solver. There is no explanation I can see about how I can turn this feature off or why/if the Captcha solver (which is a paid service) is required.
I'm wondering if captcha is going to be a problem on any YT front end that hammers the site to fetch updates for a bunch of channels/subscriptions. It's a problem I've encountered using NewPipe on Android.