The recommended installation method on Debian based systems is our APT repo. This allows for easy updates and management of the checkra1n app.
echo "deb https://assets.checkra.in/debian /" | sudo tee -a /etc/apt/sources.list
sudo apt-key adv --fetch-keys https://assets.checkra.in/debian/archive.key
sudo apt update
checkra1n is also available on other linux distributions.
CLI builds are available for x86_64, arm, arm64 and i486 CPU types. Just download the latest binary for your CPU, and run the CLI.