Have you looked into using a CDN? A good CDN configuration can pay for itself in cost savings, regardless of whether you go self hosted or remain in the cloud.
I think the interesting point here is that the hardware is available on all Teslas. The functionality shown in the video could be available on everyone's Tesla by installing an update. What they showed may be similar to what's been demonstrated by other companies in the past, but the potential for broad availability is novel.
Was there anything special about the tmux config used? What keybindings were used to move between panes? Seemed like snappier movement than you'd get with the defaults, unless maybe the video was sped up.