For those interested in the Mine! project here is another of my continuous efforts to describe, explain and eventually demonstrate Mine!
Further elaboration on the theme is in the comments.
I am pursuing the user-driven approach where my data is neither in the hands of the second party (the vendor) nor a third party (intermediary or service provider). This is a practical requirement if I am to exercise greater control over my data and autonomy over sharing it. And that is what I set out to enable with Mine! as best I can.