public notebook
Notes
Implementation details, failures worth remembering, and ideas still under load.
- GPS can lie: designing telemetry validation before side effects
A practical ordering for duplicate, time, coordinate, rate, and movement checks in an ingestion pipeline.
elixir / telemetry / data-quality - Publishing a multi-tenant ETS index without partial state
How composite keys, one mutation owner, and generation swaps turn a fast cache into a dependable read model.
elixir / ets / concurrency - Debugging distributed data from the outside in
Why I begin with the raw request and persisted state, then move inward toward logs and code.
debugging / operations / distributed-systems