I think a better take on this may be credit cards. And an old classic article, “your coffee shop does not use two phase commit” https://ieeexplore.ieee.org/doc

I think a better take on this may be credit cards. And an old classic article, “your coffee shop does not use two phase commit” https://ieeexplore.ieee.org/document/1407829 https://ieeexplore.ieee.org/document/1407829