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
Cool. If u can host it as a tor hidden service that is a large an influential market that might benefit from such a thing. Haven’t looked but it might need some additional features to work as a decent platform in that sense.