Background

You can install the Docker client on your Raspberry Pi with just one terminal command.^[1]

Requirements

• Hardware: Raspberry Pi 4
• OS: Debian 10 (Buster)

Installation

Run the following commands:^{[2] [1:1]}

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$ sudo apt update
$ sudo apt upgrade
$ curl -sSL https://get.docker.com | sh

Post-Install Configuration

Once that completes, run the following commands to allow docker to run as non-root:^[3]

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$ sudo groupadd docker
$ sudo usermod -aG docker $USER
$ newgrp docker 

Sources