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Docker containers are portable, lightweight, and self-contained. Instead of installing every application directly on the host operating system, you run each service inside its own container with its own configuration, ports, and persistent storage. The biggest advantage is portability. If you have your Docker Compose file and the data stored in your volumes or bind mounts, you can usually move the container to a different server without rebuilding everything from scratch. That is why I like Docker so much for home labs. You can run a lot of services without creating a full virtual machine for