Compile from source and make deb for installlation. Help needed

Thank you for your answer.

I have allready downloaded the latest GPL source “gpl-source-sequoia-04.01.01-413.zip”, but you got me confused my friend.

What do I need the GPL for? From what I understand you propose to compile directly on the MyCloud. How do I do that from source files? What easy-to-use script you refer to? And what is this ‘screen’ app you mentioned? I need more info and details please and if possible a guide.