Projects such as TransforMap or [inventaire.io] (https://inventaire.io) could make use of an opened linked, & contributive database with a different scope than Wikidata but re-using its properties and entities, and its interface
The obvious solution would be starting new instances of Wikibase but it currently miss federation features, namely:
- allow to make use of both local properties/entities and remote/wikidata ones
- allow to customize the naming system, replacing the incremental P and Q ids by uuid-like ids to make properties/entities imports among instances easier
The Wikidata/Wikibase team has added federation to the roadmap but made clear that it would take time to get there. We couldn’t find the dedicated issue or thread though.
[Edit] I also opened this discussion on the Wikidata Chat with the hope to dig up possible anterior discussions