bool is_running_on_classic_distribution()
{
    FILE *f SC_CLEANUP(sc_cleanup_file) = fopen(os_release, "r");
    if (f == NULL) {
        return true;
    }

    char buf[255] = { 0 };
    while (fgets(buf, sizeof buf, f) != NULL) {
        if (strcmp(buf, "ID=ubuntu-core\n") == 0) {
            return false;
        }
    }
    return true;
}