The site might be a little wonky during the holidays, including reboots and Docker container rebuilds.
I'm splitting the server setup into /woltlab (this forum) and a possible new one (Discourse). Redirects using an Nginx proxy for /cms, /wbb and index.php are in place. / might sometimes show you a different site; I'll write something more detailed once it is production ready.
In case of problems, try clearing your cookies and/or start a fresh browser session.