Because now I can use their Docker image trivially. They can also trivially use their Docker container on multiple computers, multiple VMs, multiple VPSs. The

Because now I can use their Docker image trivially. They can also trivially use their Docker container on multiple computers, multiple VMs, multiple VPSs. They can Docker Compose it into other Docker images they're setting up, too. I'm definitely not a Docker expert, but I've become a huge fan.