Have you considered making OSM itself the submission mechanism? This could be as simple as having a static guide on how to add bookcases to OSM. Your app could also act as an OSM editor specifically for bookcases (not a general one).

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andreagrandi 41 minutes ago | parent | next [-]

I haven't. That would be a completely different app which I'm not interested in working on, I'm afraid.

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michaelt 2 hours ago | parent | prev | next [-]

Presumably they hope to provide richer data (i.e. photograph of the library) that OSM isn't interested in.

	▲	zaik 2 hours ago \| parent [-]
		OSM is interested in pictures, even of bookcases: https://wiki.openstreetmap.org/wiki/Key:image The only difficulty is data than can not be easily represented in key=value pairs, such as timetables for buses. But even this can be resolved by adding external references.

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phoronixrly 2 hours ago | parent | prev [-]

This is the correct approach.