This feels like a softball directly lobbed to me! I'm writing PhotoStructure, specifically to deal with my last 20+ years of photos, and the fact that I haven'

This feels like a softball directly lobbed to me! I'm writing PhotoStructure, specifically to deal with my last 20+ years of photos, and the fact that I haven't stayed on top of keeping them all organized. The disarray was made (much) worse by my bad luck in picking cloud photo services (most of them which have shut down, or, like Google Photos, left me with a "takeout" that was down-sampled or with metadata loss). In any event, if you tackle this task, this article should help you consider which set of duplicate files you'd want to consider to be the "winner": https://photostructure.com/faq/what-do-you-mean-by-deduplicate/ https://photostructure.com/faq/what-do-you-mean-by-deduplica...