It is open source but you can’t publish modified code (this is to ensure there will be no malicious forks like there was with newpipe)

plus you missed the entire point:

… app for watching online video content - not just youtube, but nebula, peertube, twitch and more.

It’s an app that allows you to watch the same creators across many platforms

Jerboa, Voyager, Thunder, Liftoff, Combustible and Eternity all don’t have ads

https://exodus-privacy.eu.org/en/

it’s also in aurora store

“Free” as in price only

7 trackers and built-in ads

one meow man

Insular seems similar to shelter, also on f-droid.

🏴‍☠️🏴‍☠️🏴‍☠️