Choose your operating system:
yum install superkbbut after installation, configuration tweaking is needed. For more details, see Installing in Fedora from the repository
Superkb is included in Debian. Use
apt install superkb. See Installation in Debian for more information.
If you would like to install from the source code instead see: Installation from source in Debian
Ubuntu’s version included in Universe is broken. A fixed version should come up on Ubuntu 21.04.
Meanwhile, to install Superkb from source follow the instructions for installation from source in Debian