So, you meant it has disadvantage of using fpcupdeluxe?
I heard some recommend it. I personally never tried fpcupdeluxe, I use stable version and I am happy with it.
I use it all the time for secondary platforms. It is really good. But it also has nasty habits.
The most irritating one (at any given point in time) it calls itself an installer but doesn't know where to install according to the rules.
But if you are a god to your own infrastructure it is very,very good and getting better all the time.
Just don't expect that an install ends up under /usr or c:\program files..... It won't do that automatically.
To me that's a major draw-back. But anyway, virtual machines are cheap and - almost - just as fast as real hardware nowadays on x86_64 machines with hardware virtualization support.
For beginners and programmers without a professional connection (team) it is also -highly - recommended by me!
But it is not a professional installer for professional systems. Even if the code is professionally written