Bzoing provides a simple way to create task reminder alarms on your Gnu/Linux desktop using Python and Gtk3.
To use Bzoing you must:
Install snapd if you don't already have it. (try snap --help)
$ sudo snap install bzoing
You can search for bzoing on your desktop, you should see the bzoing icon. Just click it.
If you wish you can also start bzoing from a terminal with:
$ bzoing
You should see a yellow bell on your system tray. Click it to start using bzoing.