This website has gone through several changes over the years. It began as a tikiwiki and was after some years converted to drupal. After several upgrades, that were not always painless, I think it’s time to move on.
Both content management systems were probably overkill (and tikiwiki was terribly slow). Now, the site is created with Hugo, a static website engine.
For the inital conversion I shamelessly copied Rob Hyndman’s generously shared configuration.