But isn't (one of?) the author(s) of utxo dealership nostr:npub1yxp7j36cfqws7yj0hkfu2mx25308u4zua6ud22zglxp98ayhh96s8c399s ? (SuperTestnet?)

It certainly fits precisely into the lines of research he was enthusiastic about when I met him earlier in the year.

We'll see if these kind of ideas gain any traction ... they've been vaguely suggested on and off for years but never saw someone do a concrete project for it yet.