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Lolo Cab: three ways to ask a vendor's balance, three answers
Backend notes from Lolo Cab — money as an append-only ledger, the readers that disagreed with it, and the idempotency key that was already in the schema.
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Backend notes from Lolo Cab — money as an append-only ledger, the readers that disagreed with it, and the idempotency key that was already in the schema.