More or less, but in my case I would only have to run the barrier server on my personal desktop, and won't have to install any software on the client I wish to

More or less, but in my case I would only have to run the barrier server on my personal desktop, and won't have to install any software on the client I wish to control (in this case, my work laptop). I'd like to piggyback off of the existing Barrier code, since I already use Barrier to control my personal Surface Pro, which also sits on my desk. I really wish my 49" Samsung Odyssey G9 supported DDC over DisplayPort, so I could also switch my monitor input via software, and essentially have a KVM without buying any additional hardware. A major consideration for me is avoiding introducing any extra input latency between my input/output devices and my personal desktop, since I use it for gaming. I'm okay with trading off additional latency when controlling my work laptop in exchange for lower latency on my main desktop. That said, I may end up using my BeagleBone rather than my Photon, since it has an ethernet port, and running Linux may prove advantageous.