This is not an official snap package for the julia language. It offers current stable release as only the long term release of julia is a currently released by the julia team as a snap (https://snapcraft.io/julia).
The packages for RHEL 8 and RHEL 7 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 8 and RHEL 7, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 8 with the following command: