Ja, sieht leider so aus:
[code}
Linux sw6 5.10.0-24-amd64 #1 SMP Debian 5.10.179-5 (2023-08-08) x86_64
The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.
Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
You have no mail.
Last login: Mon Aug 14 11:19:46 2023 from 93.236.90.85
s:(~)# aptitude install composer
s:(~)# composer self-update
PHP Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Console/Helper/HelperSet.php on line 103
Deprecated: Return type of Symfony\Component\Console\Helper\HelperSet::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /usr/share/php/Symfony/Component/Console/Helper/HelperSet.php on line 103
Do not run Composer as root/super user! See
https://getcomposer.org/root for details
Continue as root/super user [yes]?
Command "self-update" is not defined.
s:(~)# php -v
PHP 8.2.8 (cli) (built: Jul 16 2023 11:01:20) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.2.8, Copyright (c) Zend Technologies
with Zend OPcache v8.2.8, Copyright (c), by Zend Technologies
[/code]