post_install() {
    sudo cp /opt/quantum-tetris/quantum-tetris /usr/bin
    sudo xdg-desktop-menu install /opt/quantum-tetris/quantum-tetris.desktop
}

post_upgrade() {
    post_install
}

post_remove() {
    sudo rm /usr/bin/quantum-tetris
    sudo xdg-desktop-menu uninstall /usr/share/applications/quantum-tetris.desktop
}