Wayland is intended as a simpler replacement for X, easier to develop and maintain. Wayland is a protocol for a compositor to talk to its clients as well as a C library implementation of that protocol. The compositor can be a standalone display server running on Linux kernel modesetting and …

X.Org Server is the free and open-source implementation of the display server for the X Window System stewarded by the X.Org Foundation.

Install

sudo apt install xorg-server

Usage

xorg -configure

sudo nvim /etc/X11/xorg.conf

Section "ServerLayout"
    Identifier     "X.org Configured"
    Screen      0  "Screen0" 0 0
    Screen …

The X Window System (X11, or shortened to simply X) is a windowing system for bitmap displays, common on UNIX-like computer operating systems. X provides the basic framework for a GUI environment: drawing and moving windows on the display device and interacting with a mouse and keyboard. X does not …

The goal of the GNU PDF Suite project is to develop and provide a free, high-quality and fully functional set of libraries and programs that implement the PDF file format.

GNU PDF

The GNU C Library project provides the core libraries for the GNU system and GNU/Linux systems, as well as many other systems that use Linux as the kernel. These libraries provide cricital APIs including ISO C11, POSIX.1-2008, BSD, OS-specific APIs and more. These APIs include such foundational facilities …

The ncurses (new curses) library is a free software emulation of curses in System V Release 4.0 (SVr4), and more. It uses terminfo format, supports pads and color and multiple highlights and forms characters and function-key mapping, and has all the other SVr4-curses enhancements over BSD curses. SVr4 curses …