build-an-app

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• SKILL.md

SKILL.md (first lines)

Write the app in its own folder, such as `app/`, with `index.html` on top.

Bundle everything: scripts, styles, fonts and images are files in the folder.
It cannot load from other sites, call APIs or open windows.

Data it shows is a file saved with `files.write` and `expect`, such as
`data/deals.json`, named under `data` when you publish. To keep it current,
set `source` to a routine's id from `apps.routines`; each run updates it.

To read it, `parent.postMessage({type:'openduet.data',id,name:'deals'},'*')`; the
answer is a `message` from `parent`: `{type:'openduet.reply',id,ok,value}`.

Browser storage is lost on reload: to keep a viewer's ticks, declare a `state`
collection, save with `openduet.save` (`collection`, `record`), read with `openduet.load`.

Publish with `apps.publish`: the folder, a short name, and who may open it
(`only_me` unless the person named people or everyone here). It asks the
person only when it reaches new people, uses WebRTC or shows new data.

From ychampion/openduet, Apache-2.0.

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