I noticed that as well just now. I have to say, emphasising open source remote desktop when in fact the server is closed software is a big antipattern and leads me to avoid the software already.
It seems like there's a basic version of the server software that's open source (only does one connection, no NAT or encryption, etc.) but someone could make a server based on that. It could get the bitwarden-rs treatment to make it more enticable.
