How to take a screenshot in Sway using slurp, grim, and swappy

slurp lets you draw a box on screen and outputs the geometry.

grim grabs the pixels from your Wayland compositor.

swappy is a lightweight screenshot editor for Wayland (think Snappy on macOS).

Install on Arch Linux

sudo pacman -S slurp grim swappy

Bind it to the Print key

Add this line to your Sway config: ~/.config/sway/config

bindsym Print exec grim -g "$(slurp)" - | swappy -f -

Reload Sway and you’re done.