in practice it's code in smart contract that wraps one token with another
i created a similar project on an Ethereum hackathon โฌ๏ธ
https://github.com/iluxonchik/eth-lisbon-hackathon-23
stablecoin issuers could intermediate the issuance process, so you don't need to get all credit institutions on-chain from the start
non-algorithmic stablecoin issuance already happens off-chain and presumes trust in a third party
this would just be faster. more liquidity
stablecoin issuers would get this new credit, purchase treasury bonds and increase the supply of their stablecoin
a new direct line from newly issued credit into treasuries ๐