if you’re primarily interested in getting various training sets of photos by taxon, it’s likely that the AWS Open Data approach is the way to go. (that’s more or less what that data set was built for.) the iNat folks have decent documentation about how to use the data set here: https://github.com/inaturalist/inaturalist-open-data/tree/documentation, and i wrote something which may or may not be useful: https://forum.inaturalist.org/t/getting-the-inaturalist-aws-open-data-metadata-files-and-working-with-them-in-a-database/22135. the metadata files in the open data set contain (photo) license information, taxon, and photo file locations. so you can use that to grab a bunch of photos for the appropriate taxa and licenses that you’re interested in.
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