The National Blackout: survival architecture for when the power fails
summary
A case study of how Mercadona Tech handled a nationwide power outage that disrupted central systems, focusing on survival architecture for logistics: on-site operation, Local-First modes, edge decision-making, and managing split-brain between physical reality and distributed data. It also covers the recovery phase—reconciling millions of offline transactions and restoring a single consistent system without leaving data-loss artifacts.
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chapters (10)
- 0:00Introduction
- 2:16National blackout context
- 7:11Warehouse bunker design
- 10:42Offline store architecture
- 13:33Outbox pattern sync
- 16:02Critical incident solution
- 19:35Plan B: pigeons USB chaos
- 21:21Lessons learned redundancy
- 24:09Verdict complexity vs value
- 25:10Q&A
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