https://substack.tellerstech.com/p/telstras-time-sync-outage-doordashs-94dTeller's Tech's Substacken2026-07-31T09:30:00+00:00Telstra’s Time Sync Outage, DoorDash’s 1.5M RPS Cache, Stateless MCP, GitHub and PyPI Supply Chain Delays, and Why the Quietest Infrastructure Often Has the Biggest Blast Radius