GNU/Linux CentOS Stream 10 Installing EPEL Repository
How to Install EPEL Repo on CentOS Stream 10 64-bit GNU/Linux – Step by step Tutorial.
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), CentOS Stream and Scientific Linux (SL), Oracle Enterprise Linux (OEL).

1. Terminal QuickStart
How to QuickStart with Command Line on CentOS Stream
2. Adding EPEL Repo on CentOS Stream 10
To Install the EPEL and EPEL-Next Repositories on CentOS 10, first enable the CRB repository:
sudo dnf config-manager --set-enabled crb
Then install the EPEL packages:
sudo dnf install -y epel-release epel-next-release
3. Enabling CRB Repo (If Not Already)
If CRB isn’t already enabled, you can also run:
sudo /usr/bin/crb enable