Hey @RexxS, we didn't talk about this idea... yet ;) But I was thinking, this would be a different usecase from the Lua workshop, if people don't want to learn Lua from scratch but just how to reuse and adapt your infobox. Would you be willing to give such a workshop at the hackathon?
We could also ask @Mike_Peel for support.
Feel free to edit the task, what I added there is just suggestions.

@Rfarrand Do you think we can have some space for this workshop as well? Thanks!

Of course, I'd be happy to present this workshop.

I wouldn't have time in an hour to go into the complexities of template creation/coding, so we would probably need to assume some foreknowledge of what the inside of an infobox template looks like. No knowledge of Lua is necessary.

I'll be around. I think there's some overlap between this and T221394 though - and also https://wikimania.wikimedia.org/wiki/2019:Languages/Wikidata_Infoboxes - that we should figure out so there's not too much repetition!

@RexxS Thanks! Feel free to update the description to reflect the prerequisites you expect from participants.
@Mike_Peel I'm fine merging this proposal with another one if there's duplicate - just want to make sure that we have a session where people can have time to try and experiment :)

The session was unfortunately not recorded, but you can see the output of the demo:
https://en.wikipedia.org/wiki/User:Mike_Peel/infobox
https://en.wikipedia.org/wiki/User:Mike_Peel/sandbox99
(look at the history).

For more information, see the following pages / examples:

The main module, with documentation:
https://en.wikipedia.org/wiki/Module:WikidataIB

The list of infoboxes using WikidataIB on enwp - good examples to copy-paste from:
https://en.wikipedia.org/wiki/Template:Wikidata_infoboxes

The infobox on Commons, uses WikidataIB extensively - also a good place to copy-paste from:
https://commons.wikimedia.org/wiki/Template:Wikidata_Infobox
https://commons.wikimedia.org/wiki/Template:Wikidata_Infobox/core

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Thank you for helping clean up a bit! :)