A year or so I looked into "git for data" for medical research data curation. At the time I found a couple of promising solutions based on wrapping git and git annex:
GIN: https://gin.g-node.org/ datalad: https://www.datalad.org/
At the time GIN looked really promising as something potentially simple enough for end users in the lab but with a lot of power behind it. (Unfortunately we never got it deployed due to organizational constraints... but that's a separate story.)
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