Just found this at HN:
A plus code is like a street address for people or places that don’t have one.
Plus codes give addresses to everyone, everywhere, allowing them to receive deliveries, access emergency services, register to vote – and more.
A plus code address looks like a regular address, but with a short code where the street name and number would be. These addresses exist for any location, even for places where there are no roads.
Could be cool to implement this. Especially when we’re ready for expansion to places that don’t have proper addresses.