Fairly sure that's a real trailer. There are semi trailers that extend out the side and sit in legs like that so you can take them onsite and use them as a temporary building with a little less than twice the space of a normal semi trailer.

Are you me? Wtf.

Immediately jumping to each new server version and not supporting the previous one is bewildering. Admins need time to vet "upgrades" and do the actual work. Lemmy isn't one central site. Things move at different speeds and app devs need to take that into consideration.