There's actually a small vendor that produced tiny systems that do literally stack like Lego, intended for cluster deployment in edge computing use cases like r

There's actually a small vendor that produced tiny systems that do literally stack like Lego, intended for cluster deployment in edge computing use cases like retail or restaurants. Stacking the units provides all necessary interconnects. I can't remember their name for the life of me, but they demo'd it at VMWorld a few years back. The economics versus boring pizzabox or compact blade systems probably never worked out in their favor, hence why I'm having so much trouble tracking them down again. Edit: found them. I guess they're still alive. Hivecell: https://hivecell.com/ https://hivecell.com/