Text editors are perhaps the single most important piece of software to software developers. On Funtoo they should all be found in the
app-editors category of the Funtoo tree. So, running:
user $ ls /usr/portage/app-editors
should show all text editors available from the Funtoo tree. To list all available applications in this category, including those in enabled third-party repositories (e.g., overlays added using Layman) run:
user $ emerge --search "%@^app-editors"
By default Funtoo comes with just two text editors pre-installed: nano and vi. Both are command-line text editors.
app-editors/atom-bin ebuild, which is presently only available from unofficial overlays, details can be found here, instead.