The only use case I get from reading the website is bring a server to a remote location with no wallpower/connectivity. I'd argue that is something that nowaday

The only use case I get from reading the website is bring a server to a remote location with no wallpower/connectivity. I'd argue that is something that nowadays is solved with software, not hardware. We've done data interactive offline first apps that sync when connectivity is available. This approach means that client and server run on the same $50 smartphone with the same CPU/RAM/HD as these severs but with many more features.