mackup is some sort of backup application.
It creates symlinks for every application supported (mainly with dotfiles) to a single directory.
This directory can be a dropbox, git, etc.
mackup need classic confinement because mackup need to access its own
.mackup.cfg file but also any other dotfile in home user dir.
The snap has already been pushed to snapcraft and is under manual review pending status
snap repository: https://github.com/guilhem/mackup-snap
Thank you in advance for your time.