nnn/scripts/nlaunch/README.md

nlaunch is an independent POSIX-compliant GUI application launcher shell script. Its only dependency is fzy. It’s possible to set a keyboard shortcut to open nlaunch in a terminal and use it as the regular launcher.

To use nlaunch as an independent launcher add a keybind to open nlaunch in a terminal e.g.

xfce4-terminal -e nlaunch