Hi, till now I have not developed anything on OpenVR, SteamVR, or Virtual Reality in General. However I have been developing a lot of code on Windows, Linux, and, most importantly, on micro controllers for real time applications.
As I understand from the description of the project you posted, you need to develop some code ( the remote application ) which has to run on "very light computers".
Which kind of computers are they?, I have lot of experience on Microchip 32 bit controllers, and I have also developed a new driver for a small video device, based on the ILITEK ILI9341 chip.
I have also worked on various projects to develop communication on different channels, ( Ethernet, WiFi, RS232 and 485, CAN, WMBUS ).
On the Windows platform I have made various programs which communicate over the USB, and I think this experience could be useful in developing the OpenVR driver you need.
So, if you think I can be of help, please contact me to further discuss the details of your project.