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Concurrency-safe billing on PostgreSQL: append-only ledger, idempotent webhooks, randomized invariant tests

3 mentions on Hacker News by 1 person: 1 story, 2 comments · first 2026-10-06 · latest 2026-11-12

Mentions per year 3 mentions · busiest year 2026 (3)
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    Show HN: A billing ledger on Postgres, tested with randomized invariants
    story by Proph8 · 2026-10-23 · 0 comments