As this project appears to be fairly unknown in the fediverse still, I’d like to use this opportunity to advertise Flohmarkt. This Fediverse equivalent of Facebook Marketplace already has some instances up and running - see here: https://codeberg.org/flohmarkt/flohmarkt/wiki/flohmarkt-instances
My American brain wants to read it as “FlowMart”, or “Flowmark”. Neither of which I have a problem with.
Which is also reasonably close to the German pronunciation (which is something like Flo-marked to an English speaker)