First-principles writing on backend architecture, distributed systems, cloud platforms, and the internals that power modern software.
How I built SessionVault with MCP, PostgreSQL, and pgvector so AI tools can share decisions, files, and context without manual copy-paste.
A practical guide to how email really moves through the internet, from SMTP handoff and MX lookups to queues, retries, and inbox trust.
Software Systems - Networking & Security
ReadA production-minded guide to WebSockets covering heartbeats, reconnects, fan-out, and backpressure on long-lived connections.
Software Systems - Networking & Security
ReadA first-principles guide to Server-Sent Events, from the wire format and reconnect behavior to streaming ChatGPT-style responses.
Software Systems - Networking & Security
ReadA practical guide to how email really moves through the internet, from SMTP handoff and MX lookups to queues, retries, and inbox trust.
Software Systems - Networking & Security
ReadA message-by-message walkthrough of a TLS 1.3 handshake, from ClientHello to finished secrets and encrypted application data.
Networking & Security
ReadA clear mental model of SSL, TLS, and HTTPS, and what actually happens before your browser sends secure HTTP.
Networking & Security
ReadA first-principles walkthrough of HTTP over raw TCP sockets, from request lines and headers to building a simple server from scratch.
Networking & Security - Software Systems
ReadA practical mental model of recursive resolvers, authoritative servers, caching, and why DNS 'propagation' is usually cached state in disguise.
Networking & Security
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