I am somewhat familar with ERIC’s CLARIN (or ERIC CLARIN? or just CLARIN? I’m not sure how the two names are supposed to be used together). from the linked site:

CLARIN stands for Common Language Resources and Technology Infrastructure and ERIC stands for European Research Infrastructure Consortium.

I don’t fully understand how to operate it because it’s complicated but it does seem like a distributed scientific repository. It seems to focus on language but it’s not clear to me why it can’t, or doesn’t (or maybe it does IDK) function as a general datashare. I’m not sure if it’s a model for a full replacement of for-profit publishing houses but it seems like a promising direction for research to go.