there has been some attempt to have sysklogd on debian in the past – but you need to build yourself as for 2024 – see sysklogd
otherwise as for 2024 there is GNU’s implementation as package
apt install inetutils-syslogd
cd /etc/ cp -pi syslog.conf syslog.conf.dist vi syslog.conf
https://manpages.debian.org/bullseye/inetutils-syslogd/syslogd.8.en.html
https://manpages.debian.org/bullseye/inetutils-syslogd/syslog.conf.5.en.html