When dig Works but the Browser Does Not: Debugging macOS Split DNS
A practical way to diagnose stale per-domain DNS rules on macOS when one device reaches a site, dig succeeds, but browsers and curl time out.
Systems work, in practice.
Engineering notes on backend systems, DevOps, and platform engineering, with a focus on latency, correctness, and reliability from real-time data paths to production infrastructure.
Selected field notes
Recent reports and explainers with concrete evidence, procedures, and verification steps.
Pebble vs LevelDB During an Avalanche C-Chain Replay
A field comparison of C-Chain replay throughput, database I/O, NVMe utilization, and the limits of an early-stage Pebble result.
When to Use rg, nl, Vim, and apply_patch
How ripgrep, nl, Vim, and apply_patch divide repository search, numbered evidence, interactive editing, and reviewable automated changes.