[Kalium]

Yes. There is. Several, in fact.

It shouldn't surprise you that in practical terms, nobody outside of tech cares enough to use them.

[nbadg]

Can you give some examples? I'm not aware of any protocols that fit the storage+identity+sharing triad I mentioned above (except the one I'm working on).

[dublinben]

You can do all of that today on Freenet.