As I said, the exec entry was always there from day one.

I am not brave, a little crazy mebbe!
I did try other .cmg files but they had lib problems, too.

I suspect that to be only the first encountered dependency!

I was able to run the same galculator.cmg from the Klik file after opening by click and drag the AppRun file therein to the wrapper file therein. It gave the same lib file not found. And AppRun another .cmg resulted in a different lib file not found using the same technique.

Happy New Year!