Not really a "technology" per se, but related to what you said, I'm excited about the "right to repair" movement. Sadly, I don't think the movement is that mainstream yet, but I agree with its principles. When you buy a product you should own it and be able to repair and configure it how you want. Maybe Google's Web Integrity Environment project will push people towards thinking about this more...
My feeling about "Right-to-Repair" is that it would be illegitimate if we abolished intellectual property laws, which are incompatible with conventional property rights.
However, I don't see any reason why two parties couldn't agree to a transaction that comes with a condition that repairs must be done by the seller.
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