GNU/Linux Ubuntu 20.04 Installing Super Productivity – QuickStart Guide
Hi! The Tutorial shows you Step-by-Step How to Download and Install Super Productivity App for Ubuntu 20.04 Focal LTS GNU/Linux Desktops.
And Super Productivity for Ubuntu Focal is a ToDo List / Time Tracker / Personal Jira Task Manager.
Moreover, Super Productivity is Reducing the Time you spend with Repetitive Tasks and to Provide you with a Place to Collect all the Information you need To Do your Job.
Finally, this guide includes detailed instructions about to Getting-Started with Super Productivity on Ubuntu.

1. Launching Terminal
How to QuickStart with Command Line on Ubuntu GNU/Linux
First, Update the Apt Repo Sources with:
sudo apt update
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then see: How to Enable sudo.