.PHONY: all
all:
	wget -O- https://updates.signal.org/desktop/apt/keys.asc \
	| sudo apt-key add -
	echo 'deb [arch=amd64] https://updates.signal.org/desktop/apt xenial main' \
	| sudo tee -a /etc/apt/sources.list.d/signal-xenial.list
	sudo apt update && sudo apt install signal-desktop