A mind mapper, and at the same time an easy-to-operate hierarchical editor
with strong emphasis on folding. These two are not really two different
things, just two different descriptions of a single application. Often used
for knowledge and content management.
The packages for RHEL 7, RHEL 8, and RHEL 9 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 7, RHEL 8 and RHEL 9, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 9 with the following command: