Build a Two-Currency Wallet Ledger in Postgres
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I have a soft spot for ledger design because small modeling choices decide whether a system stays trustworthy. Some products run on two virtual currencies. One is bought for entertainment, and the other is awarded as a promotion and may be redeemable. If you store both in a single balance column, y…
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- 2026-10-05 12:34 · DEV Community — AI
Build a Two-Currency Wallet Ledger in Postgres