Cool! I did a similar thing with 4x4 tablets, after connecting all 16 of them to ADB and a single host I was able to automate most of the stuff. The I just created 16 virtual screens on sway with 16 VNC clients and streamed it all over Wi-Fi as a test, but Wi-Fi worked so well that I did not look for more efficient solutions.<p>For that period my PC had 19 displays, 17 of them over VNC and it was glorious. I could either do something on all of them, or dedicate each for a different purpose/program (music, htop, calendar, clock, ssh sessions)<p>Though dealing with all the hardware was quite annoying - some throttled, some had connectivity issues, others batteries would not hold charge and so on.