rich1.0yakosuba (npub199…4r4jl)https://yabu.me/npub1990747ahn4nzew6j2x986hdttz6e9m7r2z8lg0ktu7l3scpksw7qc4r4jlnjumphttps://yabu.meare there any marketplaces built on Nostr? hypothetically if I was to build one, what would be a good way to go about building it? #asknostr #nostrdevs #grownostr