Notes from the room .

Short pieces on how we build, what we got wrong, and what changed.

Why every change is tested in a real browser

'Done' should mean it works. Here's how we make sure it does.

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Proposals, not pushes

How a live app gets changed without anyone holding their breath.

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What a room does on day two

Building the app is the first 20%. A tour of the other 80%.

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