The article is light on actual details and heavy on rants about the current state of products built on the web.<p>However there is 1 thing that mnesia got absolutely and totally right. Database schema upgrades. You can create an mnesia database and upgrade it&#x27;s schema on the fly as a part of it&#x27;s operation without once bringing it down or running a script. I did this[0] for a toy project I did in erlang once that I unfortunately never finished since the need for it disappeared.<p>[0]: <a href="https:&#x2F;&#x2F;github.com&#x2F;zaphar&#x2F;iterate&#x2F;blob&#x2F;master&#x2F;src&#x2F;db_migrate_tools.erl" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;zaphar&#x2F;iterate&#x2F;blob&#x2F;master&#x2F;src&#x2F;db_migrate...</a>