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This is a fantastic read on how Linear keeps their application so fast performance.dev/how-is-linea.... We've already implemented a couple of these techniques in Endform, but we still have some ways to go.

performance.devHow's Linear so fast? A technical breakdownbreakdown of the architecture behind Linear's speed: local-first sync, MobX observables, instant first loads, and a keyboard-first design.

Jakob Norlin

@norlin.dev

Playwright is a great tool for keeping track of perf so you don't regress on perf metrics. You can integrate it with lighthouse and make sure the INP score is good for the interactions you want to stay fast. E2E tests are super versatile and can be used to test so many aspects of your application.

9/6/26, 6:44 pm0 reposts1 like

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