DoudouOSM

@sic_semper_tyrannis The Wikidata tag should link to the entry about the feature itself, so it will be different for each particular location (so, as most locations won’t have a Wikidata entry, no Wikidata tag can be added in OSM). The brand:wikidata refers to the Wikidata entry about the brand, so it’s the same for all locations under that brand and all locations can have the tag.

See this location, for example: https://www.openstreetmap.org/way/220089987#map=19%2F41.892868%2F-87.631575

Wiki: https://wiki.openstreetmap.org/wiki/Key:wikidata?uselang=en

@Vroomfondel @Eyck_of_denesle Automated building drawing is totally possible and done. It requires an admissible (quality and license wise) source of data and a piece of software. The OSM Belgium documented the tool and process for the Belgian sources of building shapes: https://wiki.openstreetmap.org/wiki/WikiProject/_Belgium/Building/_and/_address/_import. Notice there are rules to automated imports: https://wiki.openstreetmap.org/wiki/Import.

@Vroomfondel @interdimensionalmeme As pointed, with OsmAnd, CoMaps (https://www.comaps.app/), or similar, you can download maps for offline navigation. No need to self-host OSM itself.