we have Mostro https://mostro.bilthon.dev/
Discussion
Don't know how it works, signed in and accepted a buy offer and got a private message with a text I don't understand 🙈
can't you translate the text? perhaps nostr:npub1qqqqqqqx2tj99mng5qgc07cgezv5jm95dj636x4qsq7svwkwmwnse3rfkq can help clarify how it works, he is the author of Mostro.
Maybe it is only for devs 🙈. It is like a foreign language for me haha. Thought try it because I think it is a nice thing
Screenshot?
I just spoke with a friend and he said you need a client for it. But when I look on github there are no releases for android and the web client is to complicated for me. 
not only for devs, just use the mostro web client, it's not 100% completed yet👽
you should read those messages with a mostro client, mostro.bilthon.dev for example