A latency budget you can actually use
Turn one vague performance target into a handful of decisions the whole stack can honor.
A small systems notebook
Keep the useful parts.
Remove the noisy ones.
Field notes on reliable services, measured performance, and the quiet details that make software easier to operate.
Recent notes
2026
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The case for quiet servers
A small checklist for systems that should stay boring after the initial excitement wears off.
TLS notes from the edge
Certificates, renewal paths, and what to verify before calling an endpoint healthy.