How to Install Docker Engine on Debian 11.3
Docker is an open platform tool that provides a container run time environment. Using Docker, developers can build, ship, and run their code as a container on-premises and in the cloud. Containers are spun up using OS-level virtualization in Docker. A Docker Engine is a host on which Docker is installed and containers are spun up.
For more explanation on this video: https://www.linuxhelp.com/how-to-install-docker-engine-on-debian-11-3