@MadestMadness I'm not sure if there are communities specifically for fashion, but one of my obsessions is the idea of open source decentralized clothing (and shoe) production.
I have an arena channel where I've collected a ton of resources - everything from automated knitting machines to growing 'vegan leather' using bacteria. It also has a mix of videos on clothing creation and the global industry. It might have some answers and point you in a good direction.
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