Catech Notes

Working notes on systems, networks and the occasional side project.

Recently

Reading through the Linux networking stack again — still surprised by how much lives in net/core.
Cleaning up an old backup script; rsync plus a checksum pass is usually enough.
Testing latency between a few regions, mostly out of curiosity.

This page collects short write-ups that do not deserve a full blog. Nothing here is updated on a schedule, and most of it is unfinished.

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