Louis Rossmann unveils Grayjay - a video client similar to Revanced and NewPipe, but shows your subscriptions from various video sites in a single feed.
Site: https://grayjay.app/
Source: https://gitlab.futo.org/videostreaming/grayjay
The app is OSS but not Free, which I’m personally completely OK with.
Watch elsewhere: Invidious / piped link in comments
What a great thing to witness, I hope this goes all the way and fulfil the goals that it promises to content creators and users.