Your calendars overlaid on the desktop.
sudo apt install python3-pip python3-dateutil python3-tz python3-gi gir1.2-appindicator3-0.1
pip install --upgrade google-api-python-client google-auth-httplib2 google-auth-oauthlib
git clone https://github.com/cleroux/DesktopAgenda.git
An API credentials file must be created before this application can use the Google Calendar API.
Visit https://console.developers.google.com/apis/credentials, create an OAuth Client ID and save it as credentials.json in your project directory.
nohup python desktop_agenda.py >/dev/null &