Yes! There are many similar projects[0] that we drew inspiration from. I hope to set Yesterdays apart in terms of our crowdsourcing toolset, tight integration with OSM and Wikidata, and the relationships we are building with libraries and museums that hold these collections.

I'll have to check out your Substack, it sounds right up my alley!

[0] https://docs.yesterdays.maprva.org/other/similar-projects/