This app can also be used without the ML4W Dofiles.
Copy the following command into your terminal.
bash -c "$(curl -s https://raw.githubusercontent.com/mylinuxforwork/dotfiles-calendar/master/setup.sh)"
The installation is build with ML4W Packages Installer. https://github.com/mylinuxforwork/packages-installer
flatpak uninstall com.ml4w.calendar