podman-toolbox binary package in Ubuntu Lunar riscv64

 Toolbx is a tool which allows the use of containerised command line
 environments. It offers a familiar package based environment for
 developing and debugging software that runs fully unprivileged using Podman.
 .
 A toolbx container is a fully mutable container; when you see yum install
 ansible for example, that's something you can do inside your toolbx
 container, without affecting the base operating system.
 .
 Toolbx used to be known as Container Toolbox.

Source package