Selling a product that needs freefilesync to work

[Galaxxxy]

Hello,

I'm working on a source control system for my project on Unreal Engine, using Google Drive and FreeFileSync for syncing, and its working surprisingly well thanks to this awesome soft.so much that the idea of selling the solution (my plugin that works with freefilesync not freefilesync of course) on the unreal marketplace crossed my mind .

How far can you sell a product that requires FreeFileSync to function, without selling or distributing FreeFileSync itself, but simply stating that it is necessary for my plugin to work?

Thanks

[Plerry]

Why would you not be allowed to distribute your software while not distributing the software your software depends on?
The world is e.g. full of software that depends on Windows.

You are even allowed to distribute FreeFileSync with your software, as long as you stick to the conditions as stated here: https://freefilesync.org/faq.php#distribute