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large-scale, properly setup Fedimint to-date.
Liquid, also by Blockstream, is effectively the same thing. Liquid still relies on swaps, a single point of failure, and you still need COMPLETE AND TOTAL TRUST as to how many key holders there actually are.
the technology
There is no technology bro, THAT IS THE SCAM... "the technology" you speak of is a hoax.
create my version
Get to work then, because the sooner you do the sooner you'll discover it's not possible and move on to something not retarded.
If it were possible we wouldn't need Bitcoin and proof of work in the first place.