Guides
Bundle math: how much JavaScript you actually need
The 170 KB budget is a number someone tweeted in 2016. Your real number depends on your audience’s devices, their network, and how much of the page arrives as HTML.
Tag
bundles
Budgets, splitting and the honest arithmetic behind how much JavaScript a page can afford.
9 posts1 authorLast post 2 weeks ago
Guides
Splitting a bundle by route, carefully
Route-level splitting is the easiest win in the bundler and the easiest way to make navigation feel worse.
Guides
Your build has a budget. Here is how to set it
One number in CI does more for performance than any audit you run by hand. A two-week plan for teams whose scope keeps moving.
Performance
Third-party scripts: an audit that takes an hour
List every tag, name its owner, and delete the two nobody can account for. That is the whole method.
Ask a dev
Should we adopt a component library?
Ask what it costs to leave, not what it costs to adopt. The adoption number is the small one.
Ask a dev
Is server-side rendering worth it for us?
If your content is public and your first paint matters, probably. If you are behind a login, probably not.
Guides
Setting up CI checks people do not switch off
Every disabled check was once a good idea that fired at the wrong time. Reliability matters more than strictness.
Performance
The quarterly budget review, in twenty minutes
Four numbers, one trend line each, and a decision about whether to move the tripwire. That is the whole meeting.