That's not really true for quite some time now. Both client and the free server depend on a separate submodule that has no LICENSE file whatsoever. Because of that RustDesk is stuck in a limbo somewhere between open source, source-available and closed source. Also, the whole management of the project seems questionable. Also for some features a dll blob which is not open source is required with no source disclosed at all.
That's not really true for quite some time now. Both client and the free server depend on a separate submodule that has no LICENSE file whatsoever. Because of that RustDesk is stuck in a limbo somewhere between open source, source-available and closed source. Also, the whole management of the project seems questionable. Also for some features a dll blob which is not open source is required with no source disclosed at all.