Pocket DS update: dual-screen support and virtualized lists are working. 10,000 contacts, smooth scrolling, on a Nintendo 3DS 🙌 We’ve also added a React Native style hot-reload workflow, so JavaScript can be pushed directly to the 3DS during development.

react native on a 3ds was definitely not on my 2026 bingo card

PocketJS is not React Native. React is too slow on PSP, 3DS and embed devices. We support SolidJS, Vue Vapor and Octane. They represent the new performance baseline of JavaScript UI.

fair lol, i read "rn-style hot reload" too fast solid/vue vapor/octane -> native tree is the real crazy part here

PocketJS is independent and VC-free. 🌱 If you’d like to support full-time development and help push the project further:

10,000 rows scrolling on a console with 128MB of RAM. Every Electron app that stutters on a 32GB laptop should have to explain itself.

こんなきれいな3DSを持っているのがうらやましい。

ありがとう！任天堂のハードウェアは本当に素晴らしいので、もっと長く、もっと活用されるべきだと思っています。

iOS 6 styled 3ds would actually be so cool

can i finally play my webgame in my 3ds holy shit

@vtcaustic We can allow 3DS to run complex JavaScript games without WebView

oh my gosh 😭 if only i knew how to use this

What is this? as in, what does this app do?

Hot reload on a 3DS. That's a sentence.

these devices were incredibly ahead of their time…this is the future…

so… what is this for?

can we make a sim card so i can replace my phone?

does hot reload preserve state? memory leaks will matter more than scroll speed here

It resets the JS heap/state, but that’s actually fine. We restart from a clean runtime and deterministically replay all per-frame operations to reconstruct the exact state. So there’s no real need for in-place hot reload, and this works especially well for agents.

huge

Can I use it to play ridiculously obscure iMode Java games?

Is it n3ds only?

would this work on the old 3ds?

Pocket DS

so cool!

This looks really cool but I'm no developer and don't know what I'm looking at. Can you please dumb it down a bit so I can understand? 🙏🏻🥺