Install gnome-todo by entering the following commands in the terminal:
sudo apt update sudo apt install gnome-todo
Description:
minimalistic personal task manager designed to fit GNOME desktop
GNOME To Do is a simplistic personal task manager designed to perfectly fit the GNOME desktop. Designed from ground up to seamlessly integrate with the GNOME desktop environment, To Do enables you to be as productive as you want.
Homepage: https://wiki.gnome.org/Apps/Todo
Version: 3.28.1-1
Section: gnome