I've been talking about the case that you're logged in with a Piped account, which makes your subscriptions and playlists become stored at Piped's server.

Piped does more than just proxying at its backend, the only thing that you could really call to become proxied are thumbnails and video playback.

What you said is right, but I basically said the same thing.

I'm one of Piped's main developers...

No worries, I'm used to that from other projects I'm working on :)

Mozhi is proxied through the server/instance you use.

I don't get the question. How's that related to Mozhi?

Mozhi basically acts as a middleman between you and the translation api, it doesn't store any user data.

Piped/Invidious proxy everything through YouTube, except for any kinds of user data, as that data is stored on the server you use.

Yes, I totally agree with you! I didn't yet add screenshots to the README since some parts of the app are still matter to be changed in the near future. The development started actually just four days ago, so there's still room for UI improvements. I'll make sure to add screenshots to the README once it's more mature.

There now are instructions how to build it using Docker in the Readme :)