They’re actively working on refactoring towards the NIP-99 marketplaces spec! Check out nostr:nprofile1qqsyda3mvuruue6fvl3nq2p39d8espqee26zppfs7u3sx8jd7ccrayqpr9mhxue69uhhyetvv9ujuumwdae8gtnnda3kjctv9uq3wamnwvaz7tmjv4kxz7fwdehhxarj9e3xzmny9upx9hyl for more info