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docs: refresh KV sharing, Events and Notifications docs; fix router CORS and KV size error (#4445)
* docs: refresh KV sharing, Events and Notifications docs and recipes

Bring the KV, Events and Notifications reference pages and the recipes that
use them in line with current behavior, and tighten them.

- KV: share levels, re-share and recipient rules, handle scoping, list
  limits, the 399 KB value limit, and full error tables per method.
- Events: kv:<handle> subjects, what each way of losing access does to a
  subscription, fetch() notification types, handler ownership, and accurate
  anchor-deletion and deleted-app behavior.
- Notifications: where a push goes, desktop and website behavior, sensitive
  taps, share-notify limits, and enable()/status() errors.
- Recipes: fix broken code paths (undefined helpers, single-page share
  listings, read-modify-write races, oversized batch writes, missing value
  fallbacks), use events.update(), onlyIfAbsent and batch share recipients
  where they fit, and cut repetition.
- New recipes: Add a Notification Settings Switch, Clean Up Background Work.
- Rename push-when-closed to reach-a-user-when-your-app-is-closed, drop
  playground examples that need an app the reader owns, and redirect both.

* fix(workers): send CORS on router 404s and readable 500 bodies

Unmatched paths and methods now carry Access-Control-Allow-Origin like
every other router response, so a browser sees the 404 instead of a CORS
failure. A handler response with immutable headers is copied rather than
turned into a 500, and a thrown puter.js error object is sent as JSON.

* fix(kv): one error code for oversized values, and SDK types that match the store

The store now rejects a value over 399 KB with value_too_large, as the
SDK's own check and a growing path write already did. get() declares its
batch form, and the JSDoc gives the 399 KB limit and says watch shares
can list keys.

* docs(notifications): notifications sent within 250 ms reach live listeners as one

* test(events): give the per-handle subscription cap test room on a loaded runner

It fills the whole cap of 1,000 session subscriptions one add at a time,
which went past vitest's 5 s default on a busy CI shard.
2026-11-01 20:27:15 -07:00
2026-07-28 14:52:13 -07:00
2026-09-25 21:48:15 -04:00
…
2026-07-07 16:13:18 -07:00
2026-09-25 21:48:15 -04:00
2026-07-28 14:52:13 -07:00

Puter.com, The Personal Cloud Computer: All your files, apps, and games in one place accessible from anywhere at any time.

The Open-Source Internet Computer!

« LIVE DEMO »

Puter.com · App Store · AI Builder · Developers · X

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Puter

Puter is an advanced, open-source, self-hostable internet computer designed to be feature-rich, fast, and highly extensible.

For Users

Puter's goal is to provide you with every app and feature you need to work, create, and play under one roof. From a simple Notepad and Voice Recorder to Spreadsheet and Camera, Puter wants to be the all-in-one solution for your digital life.

For Developers

Puter provides everything you need to build and publish web apps and games. From AI to Cloud Storage and Database to Serverless Workers, Puter has you covered. Puter also helps you get users! Once you build your app, you can publish it on our App Store to reach and monetize users.


Getting Started

💻 Local Development

git clone https://github.com/HeyPuter/puter
cd puter
npm install
npm start

→ This should launch Puter at http://puter.localhost:4100

To run this checkout with Docker, follow Building from source. Create a local docker-compose.override.yml to select the local build; keeping these settings out of docker-compose.yml avoids conflicts when pulling updates and keeps local configuration out of pull requests.


🚀 Self-Hosting

Linux/macOS

curl -fsSL https://puter.com/selfhost | sh

Windows

irm https://puter.com/selfhost?os=windows | iex

→ For more details, see Self-Hosting Puter.


☁️ Puter.com

Puter is available as a hosted service at puter.com.


Support

Connect with the maintainers and community through these channels:

We are always happy to help you with any questions you may have. Don't hesitate to ask!


License

This repository, including all its contents, sub-projects, modules, and components, is licensed under AGPL-3.0 unless explicitly stated otherwise. Third-party libraries included in this repository may be subject to their own licenses.


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JavaScript 33.8%
CSS 1.8%
HTML 1.2%