I've created 3 GitHub repositories during the hackathon:

(@Jheald: it took a little longer finding time to reply, I'm on my way to the conference in Stockholm, by bicycle. Between all the riding, it's been difficult to find time to finally reply to your comment! Will you be at the hackathon, by the way? I'd love to talk more about all of this with you in person.)

@Jheald, thanks for your detailed response; I'll reply Monday or Tuesday, when I have more time!

I don't know too much about storing data like this in WIkimedia Commons or Wikidata, so if you can point me to some information about this, that would be useful!

Yes, I'm planning to attend the hackathon, and the document attached is a proposal for a code project.