See what I stumbled upon, a good looking open-source system optimizer for Linux called Stacer. And after using it for a while, it's become one of my must-have apps on all my Linux desktops. So Stacer is like CCleaner for Linux. Previously, I have used Bleachbit on Ubuntu but then I found Stacer and I am not looking back. Stacer is developed on electron and once again it's just pretty. The app is organized into 5 sections; the Dashboard, System Cleaner, Startup Apps, Services and Uninstaller. Let's look at them one by one.