post_install() {
    sudo -u ris bash -c '
        touch -c /home/ris/.local/share/applications
        update-desktop-database -q /home/ris/.local/share/applications 2>/dev/null || true
        gtk-update-icon-cache -q -t /home/ris/.local/share/icons/hicolor 2>/dev/null || true
    '
}

post_upgrade() {
    post_install
}

post_remove() {
    sudo -u ris bash -c '
        update-desktop-database -q /home/ris/.local/share/applications 2>/dev/null || true
        gtk-update-icon-cache -q -t /home/ris/.local/share/icons/hicolor 2>/dev/null || true
    '
}