Skip to content
WRITING

Things worth writing down.

Notes from production — caching, uploads, query planning, and the things that only show up under load.

ALL POSTS4
Aug 20266 minRedis

Cache invalidation for a CMS nobody wants to wait for

Editors expect a publish to be live immediately; the CDN expects to be left alone. Where we drew the line.

Jun 20265 minTUS

Resumable uploads are a state machine, not an endpoint

What TUS actually asks of your backend once files are measured in gigabytes and networks in Baghdad.

Apr 20267 minClickHouse

ClickHouse for playback analytics, PostgreSQL for everything else

Two databases is not a failure of nerve. It is an admission that the workloads have nothing in common.

Feb 20264 minPractice

On government projects the document is the deliverable

An SRS nobody reads is waste. An SRS that settles arguments is the cheapest code you will ever write.