Flathub flatpak build

The development of Cura LulzBot Edition has been nearly halted for over a year since the move to GitLab.

I know that maintaining builds for different Linux distributions can be a lot of work. I spent a lot of time creating and updating AUR (en) - cura-lulzbot

To allow nearly any Linux distro to run Cura LE I feel the best option is to create a flatpak build that is hosted on Flathub.

I am fully willing to help with this but I have no experience creating flatpak packages. Who is interested in helping make this happen?