Docker Compose is a simple way to run multi-part applications. Instead of starting each service by hand (app, its database, cache), Compose lets you describe everything in one easy-to-read file. With a single command, it brings the whole stack up, connects the pieces, and makes sure they can talk to each other. This means fewer setup steps, fewer surprises, and a smoother path to actually running it. You should control who can run Docker commands. For more information, see https://docs.docker.com/engine/security/security/.