No, it’s been around for awhile. In US law, any book over 95 years old is considered public property, and can be shared for free. So, there’s volunteers that take old books and scan them, then put the digital versions online for everybody.

If you’d like to make digital copies of things from your native language/culture and add them to the collection, I imagine that’d probably be fine. I’m not part of the project though, so I don’t know the details of how these are submitted/who you need to talk to/etc.