Mapped my AWS-primary GCP-secondary setup and warned me the S3-to-GCS egress would be the killer31.5.2026
It found the exact branch in our refund code with zero coverage and flagged a fake test that only checked a mock call26.5.2026
Stateless WebSocket design for 100k connections - Redis fan-out, presence TTLs, SSE fallback included24.5.2026