Unsupported packages
These guides are user-contributed and not supported by SirCmpwn. Most distributions have a Sway package available in the official repositories. Here's some info for the ones that don't:
Sway install script for Debian 8 oldstable (Jessie).
Installation guide for Debian 9 stable (Stretch).
Installation guide for Debian 10 stable (Buster).
There is an unsupported PPA ppa:samoilov-lex/sway that includes a sway package which is compatible with Ubuntu 19.04+. Run following commands (as root) in order to install Sway from the PPA:
add-apt-repository ppa:samoilov-lex/sway
apt update
apt install sway
Another old PPA ppa:s.noack/ppa includes a sway package which is compatible with Debian (stable and testing) and Ubuntu (all versions since including the last LTS release). Please don't use it, the sway version there is outdated.
Quick guide to building sway on Fedora 29.
