Personally, I think the Ubuntu 22.04 login screen is too plain, and I'm not a big fan of the lock screen either. Currently, Gnome Settings only lets you change the desktop wallpaper, but I remember previous versions also allowed you to change the lock screen wallpaper. So, after some searching, I found that the login screen can be changed, but there's no convenient way to change the lock screen. If anyone knows how, please email me. My email address is in my GitHub profile.

When testing a website for SEO, we recommend converting PNG images to webp. This significantly reduces image size with minimal loss of quality. This will speed up page loading and conserve bandwidth.

Git is a rarely updated but important development software. The version in the official system repository is always significantly behind the latest version. If you don't want to install additional daily updates, manually installing the latest version from source is a good solution.

When nginx starts or rereads its configuration, to speed up processing of some static data sets (such as server names, MIME types, etc., which you may have encountered when configuring nginx), it stores these data in a cache block (cached in a storage device between memory and CPU registers, close to the CPU. Modern CPUs have L1, L2, and L3 encapsulated within the CPU, which is characterized by speed, faster than memory but slower than registers). The size of this cache block is controlled by the parameter server_names_hash_bucket_size. The default size varies depending on the physical CPU, usually being a power of 2. When increasing the size, adjust the value according to the CPU level.

WeChat official does not directly provide a Linux system client. We don't like Wine's Wechat. Kylin Software and Tencent jointly promote the adaptation of native Wechat based on Linux platform. We provide a deb package, which is not wine, and it can be used barely.