Easy solution: the app only redirects you to the website via browser intent.

For some robtos there seems to be a self hosted version of the servers available. Though I haven’t found the actual installation guide yet.

Reference

Sooo you say there is a third one?

Installed another update, working again!

Loaded the update via the internal function a few hours ago and still got error 403 on every video I tried. Haven’t twsted it thoroughly yet though.

Meanwhile in Germany: Houses still getting copper internet cables this year (and probably the next 10 too).