! works for me, it’s like a pin, as you mentioned in another reply. Regarding NIP-30, I think it would be great if we could link the geohash in the content with a ‘g’ tag and add information such as the place name. We could render its name directly without decoding it or relying on other services that mostly return only the country or city name. This would allow us to specify the place’s name ourselves if we want, similar to POIs on Google Maps.