Redshift adjusts the color temperature according to the position of the sun. A different color temperature is set during night and daytime. During twilight and early morning, the color temperature transitions smoothly from night to daytime temperature to allow your eyes to slowly adapt. At night the color temperature should be set to match the lamps in your room.

Rofi is a minimalist application launcher. It memorizes which applications you regularly use and also allows you to search for an application by name.

Hyprpaper is a blazing fast wallpaper utility for Hyprland with the ability to dynamically change wallpapers through sockets. It will work on all wlroots-based compositors, though.

XBindKeys is a program that allows you to launch shell commands with your keyboard or your mouse under the X Window System. It links commands to keys or mouse buttons, using a configuration file. It's independent of the window manager and can capture all keyboard keys (ex: Power, Wake...). It optionally supports a Guile-based configuration file layout, which enables you to access all XBindKeys internals, so you can have key combinations, double clicks or timed double clicks take actions. Also all functions that work in Guile will work for XBindKeys.

wlrctl is a command line utility for miscellaneous wlroots Wayland extensions. At this time, wlrctl supports the foreign-toplevel-mangement (window/toplevel command), virtual-keyboard (keyboard command), and virtual-pointer (pointer command) protocols.

Startup-notification contains a reference implementation of the startup notification protocol. The reference implementation is mostly under an X Window System style license, and has no special dependencies.

Aquamarine is a C++-only Linux rendering backend library. It provides basic abstractions for an application to render on a Wayland session (in a window) or a native DRM session. It is agnostic of the rendering API (Vulkan / OpenGL).

xftwidth is a small C program for calculating the pixel widths of displayed text using Xft fonts. It is especially useful in scripts for displaying text in graphical panels, menus, popups, and notification windows generated using dzen. These scripts are often used in conjunction with minimalistic tiling window managers such as herbstluftwm and bspwm.

xwhite is a command line tool for adjusting the colour balance of screen. It is based on xrandr's gamma correction and brightness adjustment. As such, it can only be used for X displays and not Wayland displays. It is typically used for tuning the color balance and color temperature. It has a similar function as redshift -P -g R:G:B -O temperature, but xwhite is more flexible in that it does not keep the white color fixed, suitable for setting the white color to an arbitrary balanced color.

The xxkb program is a keyboard layout switcher and indicator. Unlike the programs that reload keyboard maps and use their own hot-keys, xxkb is a simple GUI for XKB (X KeyBoard extension) and just sends commands to and accepts events from XKB. That means that it will work with the existing setup of your X Server without any modifications.

Gammastep automatically adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.

The XCB util module provides a number of libraries which sit on top of libxcb, the core X protocol library, and some of the extension libraries. These experimental libraries provide convenience functions and interfaces which make the raw X protocol more usable. Some of the libraries also provide client-side code which is not strictly part of the X protocol but which has traditionally been provided by Xlib.

XCB util-xrm module provides the following libraries:

- xrm: utility functions for the X resource manager.

slop (Select Operation) is a tool that queries for a selection from a user and prints the region to stdout. It grabs the mouse and turns it into a crosshair, lets the user click and drag to make a selection (or click on a window) while drawing a pretty box around it, then finally prints the selection's dimensions to stdout.

unclutter-xfixes is a rewrite of the popular tool unclutter, but using the x11-xfixes extension. This means that this rewrite doesn't use fake windows or pointer grabbing and hence causes less problems with window managers and/or applications.

Unclutter is a program which runs permanently in the background of an X11 session. It checks on the X11 pointer (cursor) position every few seconds, and when it finds it has not moved (and no buttons are pressed on the mouse, and the cursor is not in the root window) it creates a small sub-window as a child of the window the cursor is in. The new window installs a cursor of size 1x1 but a mask of all 0, i.e. an invisible cursor. This allows you to see all the text in an xterm or xedit, for example. The human factors crowd would agree it should make things less distracting.

xtrlock locks the X server till the user enters their password at the keyboard. While xtrlock is running, the mouse and keyboard are grabbed and the mouse cursor becomes a padlock. Output displayed by X programs, and windows put up by new X clients, continue to be visible, and any new output is displayed normally. The mouse and keyboard are returned when the user types their password, followed by Enter or Newline. If an incorrect password is entered the bell is sounded. Pressing Backspace or Delete erases one character of a password partially typed; pressing Escape or Clear clears anything that has been entered.

wl-color-picker is a script that provides color picker for Wayland and wlroots by leveraging grim and slurp.

Xkeysnail is an X environment keyboard remapping tool, featuring high-level and flexible remapping mechanisms. It affects the low-level layers (evdev and uinput), making remapping work in almost all the places.

Dzen is a general purpose messaging, notification and menuing program for X11. It was designed to be fast, tiny and scriptable in any language.

This package provides an accelerated X server library for i.MX6.

Xdpyprobe is a tiny C program whose only purpose is to probe a connectivity of the X server running on a particular DISPLAY.

FYI is a command line utility to send desktop notifications to the user via a notification daemon implementing XDG desktop notifications.

xkb-switch is a C++ program that queries and changes the XKB layout state.

xkblayout is a CLI application to generate templates for a new XKB layout, either in the user's home directory or the system directory.

xscreensaver is a popular screen saver collection with many entertaining demos. It also acts as a nice screen locker.