Migrations
A schema migration in four acts
Expand, backfill, contract — and the uncomfortable weeks in between when both shapes have to be true at once.
17 July 2026 · 11 min read
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2021
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Migrations
Expand, backfill, contract — and the uncomfortable weeks in between when both shapes have to be true at once.
17 July 2026 · 11 min read
Operations
Every incident that does not page someone is a feature another team will end up building twice, badly.
10 July 2026 · 7 min read
Storage
Adding one nullable field to a hot table, priced out through storage, index rebuilds and three years of backups.
26 June 2026 · 9 min read
Postmortem
A connection pool, a health check and a deploy that was technically correct. The full timeline and what we changed.
02 June 2026 · 14 min read
Practice
If you cannot describe how to recover from the failure, you do not understand the feature well enough to ship it.
18 May 2026 · 6 min read