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.
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.