Menulibre request Flatpak

Project information:

MenuLibre is an advanced menu editor that provides modern features in a clean, easy-to-use interface.
Name: menulibre
Homepage:https://github.com/bluesabre/menulibre
License: https://github.com/bluesabre/menulibre/blob/master/COPYING
Upstream has been contacted: yes
https://github.com/bluesabre/menulibre/issues/65
Someone is interested, but need help. Help please!!!