Notes

On keeping a fifty-thousand-row finance dashboard responsive — typed filter state, table virtualization, lazy charts, and the discipline of treating a 200ms interaction budget as non-negotiable.

How a teaching playground and a packaged browser agent end up sharing one typed event envelope, one ingestion contract, one Redis-backed store, and one triage dashboard — without either side compromising.

Turning raw dealership notes into schema-validated summaries, add-on recommendations, compliance flags, and SMS copy — while keeping identity, rate limits, persistence, and evals on the server side.

A multiplexed Binance WebSocket feed becomes candlesticks, order-book depth, recent trades, and performance telemetry — without letting live data destabilize the interface.

Shaping a React component library for data-heavy tools — export boundaries, density tokens, Radix accessibility primitives, Storybook QA, and bundle budgets.

From interactive security playground to a production-shaped event pipeline — typed envelopes, project RBAC, Redis storage, and an alerting workflow that doesn't cry wolf.