Unixcop published a tutorial about installing Curtail on Ubuntu 20.04 or 22.04 LTS.

How to Install Curtail on Ubuntu 20.04 | 22.04 LTS

In this guide, we will show you how to install Curtail in Ubuntu systems. Curtail is an open source image compression tool for Linux desktops, written in Python. It makes use of the open source OptiPNG, pngquant, and Jpegoptim libraries to “do” the compression, and a GTK GUI providing an attractive, easy-to-use frontend. 

How to Install Curtail on Ubuntu 20.04 | 22.04 LTS - Unix / Linux the admins Tutorials