A script that switches keyboard layouts automatically based on the X window title

autolayout.sh

#!/bin/bash

# for xtitle to work properly
sleep 0.5


layout="us"

xtitle -s -f '%s\n' | while read window_title; do
	case $window_title in
		"Messenger"* | "Slack"*)
			if [[ "$layout" != "cz" ]]; then
				echo "Changing keyboard layout to CZ"
				setxkbmap cz -variant qwerty
				layout="cz"
			fi
		;;
		*)
			if [[ "$layout" != "us" ]]; then
				echo "Changing keyboard layout to US"
				setxkbmap us
				layout="us"
			fi
		;;
	esac
done

dependency: https://github.com/baskerville/xtitle

git clone --depth 1 https://github.com/baskerville/xtitle.git
cd xtitle/
make && sudo make install