Goal: improve book data quality (with a particular focus on mixed up works and editions) on Wikidata by creating tools/gadgets to help users so that they don't need to understand the ontology.
External projects like inventaire.io that rely on Wikidata's data have already solved part of that problem.
It's a complex situation because the data can be messy on several levels, which might all need a different tool or handling.
The goal of the hackathon is to create a step-by-step plan to create gadgets/tools/etc. to deal with the most frequent problems and see what is technically feasible at each stage.