I have an "unorthodox" audio-oriented "KVM" setup that looks like this: {PC; Work laptop; …} → HDMI switcher → HDMI digital sound extractor → {S/PDIF DAC → S

I have an "unorthodox" audio-oriented "KVM" setup that looks like this: {PC; Work laptop; …} → HDMI switcher → HDMI digital sound extractor → {S/PDIF DAC → Speakers; Monitor} The HDMI switcher is actually just for A/V; I use Barrier for the keyboard and the mouse (well actually not mouse, but a trackball). Though now that I think of it, I wonder if I could cobble something together with CEC to pass keyboard and mouse inputs through HDMI. In theory, that should be possible by attaching a ESP32 or something like that to the CEC pin on the monitor side…?