EmailZap · Knowledge Base

Concepts & technical notes

A collection of practical notes on EmailZap architecture, authentication, realtime events, observability, and the systems behind modern chips.

Observability

Session recordings

How replay works across web and mobile, including masking policy, privacy boundaries, and debugging pitfalls.

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Mobile authentication

How mobile auth differs from Chrome extension session cookies and the backend's service-to-service flow.

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Server-Sent Events

How realtime events move from Lambda and Celery through Valkey and Django ASGI workers to clients.

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ARM, x86 & the semiconductor world

A guided overview of chip architecture, Graviton, instruction sets, and semiconductor history.

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