Re: Weathergraph - thanks for the details. Since you already run whole-world reverse geocoding on a single server, that's a bit different from Corviont's current regional/fleet packaging (where you ship only the area you need to each edge/on-prem deployment). A "world geocoder-only" pack could still make sense - but it's a different distribution/update story than my default.
For your use case, do you want reverse results at the city/region/country level - or do you also need street/house number detail? That choice mostly determines how heavy a world geocoder-only pack needs to be.