GNU/Linux Rocky 8 Adding EPEL Repository
The Guide Simply Shows How to Install EPEL Repo Rocky 8.x 64-bit GNU/Linux.
And the Extra Packages for Enterprise Linux (or EPEL) is a Fedora Special Interest Group that creates, maintains, and manages a high quality set of additional packages for Enterprise Linux, including, but not limited to, Red Hat Enterprise Linux (RHEL), Rocky and Scientific Linux (SL), Oracle Enterprise Linux (OEL).

1. Terminal QuickStart
How to QuickStart with Command Line on Rocky Linux
2. Adding EPEL Repo on Rocky Linux 8
To Install the EPEL Repository on Rocky Linux 8, first enable the PowerTools repository:
sudo dnf config-manager --set-enabled powertools
Then install the EPEL release package:
sudo dnf install -y epel-release
3. Enabling PowerTools Repo (If Not Already)
If PowerTools isn’t already enabled, you can also run:
sudo dnf config-manager --enable powertools