Common display managers (or login managers) include LightDM, GDM, Ly, etc. Most of them are written in C, and often only support GUI or command line interface. greetd is written in rust and supports command line and a graphical interface (greeter).

The screenshot function is used in many scenarios in daily work. When you want to explain a certain problem to your partner, a picture is worth a thousand words. The so-called picture has the truth. The screenshot is usually modified under the comment, and the red box in the key place , operation steps, arrow guidance and so on.

When I was writing some interesting functions of Firefox yesterday, I needed to demonstrate some ui operation steps. At this time, the screenshots are not clear enough to record the process. I think that there are often some gif pictures on Github to demonstrate the operation steps. Use the command line to combine two pictures It is also possible to produce a gif image, which is a little troublesome. In this scenario, it is an ideal way to record the screen operation steps and then generate a gif image. Of course, it is also possible to embed a video on the website, but many platforms do not support video Upload, for simple web tutorials, pictures are more suitable.

The application launcher (application launcher) is usually used to quickly locate and start other programs in the computer. For example, Albert Launcher and Synapse in Linux, Alfred in macOS, etc. After pressing the Super shortcut key in the Gnome environment, it is also Almost functional.