The post discusses Lumier, a tool designed to run macOS virtual machines (VMs) using Docker. It clarifies the misconception that VMs themselves operate within Docker; instead, Lumier provides a management interface that connects to VMs hosted on macOS ARM via the Apple Virtualization Framework. Comments highlight potential uses of running macOS VMs on AWS EC2 instances and raise questions about the benefits and drawbacks of running Linux VMs to instantiate macOS VMs, especially considering Apple's high RAM costs. This reflects broader concerns about virtualization on macOS and the desire for effective cloud solutions that leverage Apple's ecosystem.