Markets spec reference officially merged! The beginning of an exciting future for de-commerce ;)
https://github.com/nostr-protocol/nips/pull/1784/

We are a collective of developers working on the main marketplaces on Nostr, including @Shopstr Markets, @Cypher, @Plebeian Market, and @Conduit.Market. We've been working on enhancing the interoperability of our projects, and we're now presenting the specification we've developed. It is primarily based on NIP-99, which is very broad in its use cases and has become the most widely adopted NIP for implementing marketplaces. However, NIP-99 lacked conventions necessary for a standard e-commerce experience. Our ultimate goal is to benefit users by providing a more coherent experience across Nostr-based marketplaces.

https://github.com/nostr-protocol/nips/pull/1784