Operation not supported: AH00023: Couldn’t create the mpm-accept mutex
Happened when running Apache in a docker container in an Apple Silicon M2.
Fix:
Add “Mutex posixsem” at the top of apache2/conf/httpd.conf file
echo 'Mutex posixsem' >>/etc/apache2/conf/httpd.conf
Source: https://github.com/bitnami/bitnami-docker-wordpress/issues/316#issuecomment-1088027256