$io->writeln('<href=https://symfony.com/blog>Good news</>'); // already implemented
$io->writeln($splFileInfo->getPath()); // to open a directory in a file manager
$io->writeln($splFileInfo->getPath(), (?array=null) $selected=["app.php"]); // like above + selected files
$io->writeIdeLink('<href-ide='.$splFileInfo->getPathname().'>a file</>', (?int) $line, (int=0) $row, (?int=null) $selectionEnd); // using get_cfg_var('xdebug.file_link_format')
$io->writeScript('text for clipboard', (string) $cdm = "echo %s | xclip");