Podman is the supported drop-in replacement for RHEL 8+.

To install Podman, run the following commands:

dnf install -y podman
/usr/local/apnscp/bin/scripts/yum-post.php install -d podman siteinfo
systemctl reload fsmount

In order for containers to keep running, you need to tell systemd to linger your user:

loginctl show-user <user> --property Linger
loginctl enable-linger <user>