can't even create the first page.

HTTP ERROR 500 when attempting to create the top most topic page.

Other errors I've encountered and wasted 4 hours on:

A wiki page restricted to localhost? How is that useful. At least give me an installation question asking if I want this.

You can't change the settings because the /etc/dokuwiki directory and /etc/dokuwiki/local.php permissions
are wrong.

Sites added by dokuwiki-addsite are inaccesible. No rewrites or apache.confs are created/modified to
provide apache with knowledge of their existence.

Documentation for the use of this package is non-existent.

This package is only for people who have enough system administration skills to install dokuwiki from its source which is a better supported choice. I am going to.