Allow using ML Kit without the need for other Firebase bits

We're currently on the hunt for a QR scanner for use in a NativeScript/Vue app and this seems like a perfect fit, but when looking at the Firebase documentation for "ML Kit for Firebase" it seems like the SDK has been deprecated and split into two new SDK's: "Firebase ML" and "ML Kit".

Can anyone clarify if this repository relies on the deprecated SDK or if it's just the documentation that hasn't been updated to reflect the changes?

We would prefer not to set up a Firebase account (along with all of the legal and GDPR stuff).