[lux 3] which SDK to use?

Hi,

I'm new here, I'm a developer and I've just bought a Pocketbook Touch Lux 3, mainly to rest my eyes.

The device being based on GNU/Linux, I was hoping to see some way to code there, and happy to see there is a SDK.

But I'm not sure which one to use, in other threads people are talking about https://github.com/blchinezu/pocketbook-sdk but I'm not sure were it's coming from, if it's official or whatever. I've also found https://sourceforge.net/projects/pocketbook-free/ which is nearly 2 years old, and (http://pocketbook-free.sourceforge.net/en/index.shtml has not been updated for 5 years!).

My first goal would be to launch a terminal, and to use remoteInk which seems quite nice.

So were https://github.com/blchinezu/pocketbook-sdk is coming from, is official ?

Thanks :)