# Download the latest release
sudo wget https://github.com/shiftkey/desktop/releases/download/release-2.6.3-linux1/GitHubDesktop-linux-2.6.3-linux1.deb

# If you don't already have gdebi-core installed, install it by running the following command:
sudo apt-get install gdebi-core

# then run the following command to finish the desktop installation:
sudo gdebi /home/username*/GitHubDesktop-linux-2.6.3-linux1.deb