swaywm/sway

Sway is a window manager, the software that controls how application windows are arranged on your screen, designed for the Linux desktop. It is compatible with i3, a popular keyboard-driven window manager, meaning users who already have an i3 setup can switch to sway with little or no reconfiguration. The key distinction is that sway runs on Wayland rather than X11. Wayland is a newer display system for Linux that is gradually replacing the older X11 protocol; it is generally considered more secure and efficient. Because sway mirrors i3's configuration and shortcuts, it lets existing i3 users move to Wayland without relearning their tools. Sway is written in C and is a compositor, meaning it handles both window arrangement and rendering (drawing windows on screen) in one program. It supports optional features like wallpapers and system tray icons through companion tools. You would use sway if you are a Linux user who wants a fast, keyboard-centric tiling window manager on a Wayland session, especially if you are already comfortable with i3 and want to take advantage of Wayland's benefits without changing your workflow. It is a developer-and-power-user tool; it is not a point-and-click desktop environment.