Code review comments that change things
Most review comments are noise or nitpicks. A small taxonomy of the ones that are worth writing.
page 3
older dispatches from the README archive.
Backpressure is the concept your system is missing
When a fast producer meets a slow consumer, something has to give. Deciding what, in advance, is the whole discipline.
The crawler tolls, one year on
Default blocking and pay-per-crawl changed who can read the web. An assessment of what actually happened.
Cross-platform is a promise you make to your budget
Write once, run anywhere, debug everywhere. The honest accounting of what each approach actually costs.
Retries: a complete guide to not making it worse
The most common way a small incident becomes a large one is a retry policy written without thinking about aggregate behavior.
Half of 2026, in one page
Six months of regulation, agent tooling that mostly did not fix the bottleneck, and a web platform that quietly finished.
Configuration is the most under-designed part of your system
It has no type system, no tests, no review, and it causes a disproportionate share of outages.
Randomness, and the bugs you cannot reproduce
The bug that happens once a week and never in staging. A systematic approach to the class of problem everyone handles badly.
What a staff engineer does all day
The role is genuinely ambiguous and that ambiguity is load-bearing. An attempt at a concrete description.
Licenses: a practical guide for people who ship
Not legal advice. A working engineer's map of what the common licenses actually require you to do.
Distributed tracing that people actually use
Most tracing deployments produce beautiful waterfalls nobody opens. The difference is three implementation details.
Refactoring under an agent
Large mechanical refactors are the clearest win available from coding agents. Here is the process that keeps them safe.
The World Cup is the largest load test ever run
A month of synchronized global demand across three countries, sixteen cities, and every streaming platform at once.
WWDC 2026 and the platform that keeps its own counsel
New OS versions, more on-device model surface, and a developer relationship that remains complicated.
Static analysis is finally worth the false positives
The tools got dramatically better while everyone was ignoring them because of a bad experience in 2015.
Time zones, and why your calendar code is wrong
An instant is not a time. A time is not a date. The rules change by government decree with a few weeks' notice.
Rewrites: when they actually work
The received wisdom is never rewrite. The received wisdom is mostly right and has three real exceptions.
What a great bug report contains
Six fields. Most reports have two. The difference is measured in days of engineering time.
Edge computing, honestly
Running code close to users is a real win for a narrow set of workloads and a complication for everything else.
Model evaluation for people who ship
Not research benchmarks. A practical harness you can build in a day that makes every future model decision an hour instead of a week.