iiinova — where your digital self keeps evolving

Reposted by Jay Meistrich

React Native Connection @reactnativeconnect.bsky.social · 28/07/2026

🚀 The React Native Connection lineup is final! @jayz.us @satya164.page @zoontek.me Alex Hunt @uffoltzl.bsky.social @cedric.dev @ziusko.bsky.social, Thomas Renaud & Victor Henrion — from @swmansion.com @callstack.com @expo.dev @margelo.com Theodo & Meta 👉 reactnativeconnection.io?utm_source=b...

042

Reposted by Jay Meistrich

Infinite Red @infinite.red · 09/07/2026

Coming to Chain React: Fast by Default: Performance Starts with State ⚡ Why do React Native apps get slow? @jayz.us explores how state architecture impacts performance and how fine-grained state can improve rendering, developer experience, and sync. 🔗 chainreactconf.com/speakers/jay...

011

Jay Meistrich @jayz.us · 20/10/2025

I've got LegendList's scrollToIndex and sticky headers features working in react-dom now (though not fully optimized yet) - try it out in @legendapp/list@2.1.0-beta.2 🎉 If you've used another web virtualized list library before, what are your pain points?

270

Reposted by Jay Meistrich

React Universe Summit @reactuniverse.com · 04/10/2025

Fastest list in React Native & React DOM? Legend List v2. @jayz.us (Legend / Bravely) reveals the optimizations behind it: signals, minimized renders, and platform-specific tricks for web & mobile. ▶️ youtu.be/Ui3qVl80Pzg

youtu.be

Legend List: Optimizing for Mobile & Web | Jay Meistrich at React Universe Conf 2025

YouTube video by Callstack

041

Jay Meistrich @jayz.us · 07/09/2025

Not yet. Focusing on perfecting the core first.

010

Jay Meistrich @jayz.us · 06/09/2025

Wow this is a huge improvement from upgrading to LegendList v2! I didn't even know it's THAT much better 😅 I've been using @habitpixel.com for a while and it will be great to get a perf boost in it 🎉. So cool to be able to make the apps I use even better 🫡

041

Jay Meistrich @jayz.us · 05/09/2025

Legend List 2.0 is LIVE! The ⚡️ fastest React Native list library, in 100% JS, now with more accuracy and speed! ✨Perfectly accurate scrollToIndex ✨Even faster ✨Zero mount time on new arch ✨Sticky headers ✨estimatedItemSize is optional ✨New and old arch www.legendapp.com/open-source/...

3272

Jay Meistrich @jayz.us · 30/08/2025

Getting Legend List for web ready for my @reactuniverseconf.com talk in beautiful Wroclaw 😍

1202

Jay Meistrich @jayz.us · 23/08/2025

I got maintainVisibleContentPosition working in LegendList on web 🎉 So it looks like we can support initialScrollIndex with no jank scrolling up, and bidirectional infinite lists should work too! The solution seems to be scrollBy(), which does not break momentum scrolling 👍

060

Jay Meistrich @jayz.us · 18/08/2025

I'm actually working on making a perfect chat UI right now. The answer to the list is Legend List of course 😅. But there's a lot more on top to get everything perfect. We'll hopefully have something to show soon! @samuel.bsky.team Ping me when you're ready and I'll try to help 👍

140

Jay Meistrich @jayz.us · 18/08/2025

It's already used in production in a few apps so it should be ready to use even in beta. Please give it a try and report any issues you see ❤️ Full release notes: legendapp.com/open-source/...

legendapp.com

Version 2

010

Jay Meistrich @jayz.us · 18/08/2025

Legend List 2.0 is now in beta! ✨ Improved performance ✨ Perfectly accurate scrollToIndex ✨ Mount time on new arch goes from pretty fast to ZERO ✨ Sticky headers ✨ estimatedItemSize is now optional ✨ Fixes many bugs

1484

Jay Meistrich @jayz.us · 17/08/2025

Works on both old and new arch 😀

110

Jay Meistrich @jayz.us · 17/08/2025

2 Fast 2 LegendList. Beta 2morrow.

1151

Jay Meistrich @jayz.us · 06/08/2025

Legend List for React DOM coming soon, launching September 4 at @reactuniverseconf.com. The goal is to be faster than every other list library on both mobile and web.

0141

Jay Meistrich @jayz.us · 27/07/2025

Legend List is feeling a bit sticky

0182

Reposted by Jay Meistrich

React Universe Summit @reactuniverse.com · 01/07/2025

🔹 Meet the Speakers 🔹 Jay Meistrich is the founder of Legend and CTO of Bravely. He builds Legend State, Legend List, and Legend Photos to make React and React Native apps faster and easier. Welcome on board, @jayz.us 🔥 🎟️ Book your spot: hubs.li/Q03vq7PX0

021

Jay Meistrich @jayz.us · 11/06/2025

Where did everyone end up? I'm gonna head to central soon.

130

Jay Meistrich @jayz.us · 11/06/2025

I'm free from around 4. Also in Sloterdijk.

130

Jay Meistrich @jayz.us · 29/05/2025

Long but good. Great meeting you as well! Hope the second day was awesome, sad I had to miss it...

100

Jay Meistrich @jayz.us · 20/05/2025

What are you often searching for?

010

Jay Meistrich @jayz.us · 20/05/2025

That's a good question! I hadn't gotten there yet. But I should probably experiment and figure out that pretty soon... I'll post back when I figure out the best option. Do you have any favorites?

120

Jay Meistrich @jayz.us · 19/05/2025

Very interesting ideas I hadn't thought of! - how do you define a group? Would it be by filtering for certain labels? - showing latest comments could be very useful! Mind if I ping you in a few weeks to talk more ideas? Busy with Local First conf and App.js for the next couple weeks 😃

140

Jay Meistrich @jayz.us · 19/05/2025

What are the main things you're looking for?

130

Jay Meistrich @jayz.us · 19/05/2025

Oh this is all great to know! Thank you ❤️. I might ping you again in a few weeks for more thoughts if you don't mind :)

120

Jay Meistrich @jayz.us · 19/05/2025

Not yet, still a prototype. I'm experimenting with UI and haven't hooked up the write APIs yet. I'm going to try to release something with a month or so. Busy for the next two weeks with Local First conf and App.js :)

010

Jay Meistrich @jayz.us · 18/05/2025

Use WASM for which part?

110

Jay Meistrich @jayz.us · 18/05/2025

I don't. I should! I'll post about that soon and see if I can build up a list.

020

Jay Meistrich @jayz.us · 18/05/2025

That's my aim! Do you have any big frustrations with using GH itself?

220

Jay Meistrich @jayz.us · 18/05/2025

It's still a prototype but it's looking promising! I've gotten frustrated managing Legend List and Legend State issues so this is primarily scratching my own itch. But I think it could be useful for a lot of people :). Would you use something like this?

3110

Jay Meistrich @jayz.us · 18/05/2025

I'm trying to make the fastest Mac app you've ever seen. So of course I'm building it in javascript with React Native. It'll be an app for managing Github issues, PRs, discussions. 🔌 Local first 🛜 Works offline ⚡️ Instant interactions 💾 App is 50mb, 100mb ram 👐 Open source

6707

Jay Meistrich @jayz.us · 15/05/2025

Thanks! Haven't found any cases where it's worse, just some features it doesn't have yet like sticky headers, masonry, columns has some rough edges.

020

Jay Meistrich @jayz.us · 15/05/2025

Maybe the data is being serialized between the screens, so it's not actually the same observable or object somehow?

010

Jay Meistrich @jayz.us · 14/05/2025

Heya! I’m working on my Legend List talk for Appjs. Anything you’re curious about or think I should include? Like, how some bit of it works, why it does certain things, or general performance questions? Let me know what you’d love to hear about and I'll try to cover it ❤️

280

Jay Meistrich @jayz.us · 14/05/2025

Hmm that's weird... I just wrote a couple tests to make sure and it seems to be working right. If you're assigning an array with the same values it won't be considered a change, but otherwise I'm not sure why that wouldn't work. Can you share more code?

110

Reposted by Jay Meistrich

Infinite Red @infinite.red · 06/05/2025

🚀 After a YEAR away, Jamon’s Code Quests returns! On this episode: Watch @jamon.dev build a macOS app with React Native! Perfect for anyone looking to spin up a new app quickly. Full episode → youtu.be/0h-owMCfy5s Clip below 👇

2179

Jay Meistrich @jayz.us · 05/05/2025

If you're making a desktop app using react-native-macos or react-native-windows app, what are you making? And DM me! Let's see if we can help each other out 😀

1102

Jay Meistrich @jayz.us · 02/05/2025

I had misunderstood the FlashList internals and halved the drawDistance incorrectly. These videos are also more exact, using a script for scrolling at a consistent speed. The previous video was at 1.3x, this is 1x. The latest optimizations are not quite stable yet, will release them this weekend!

070

Jay Meistrich @jayz.us · 02/05/2025

I made a mistake in the LegendList comparison which made FlashList look worse than it is 🤦. But another mistake made LegendList look worse than it is too 😂. And I did another round of optimizing today, so it's still looking pretty good!

190

Jay Meistrich @jayz.us · 30/04/2025

Working from this island is the most productive I've ever been. Just code and eat, with a daily sunset walk on the beach. But today my productivity dropped when I made friends with the hotel cat who sat on my laptop and demanded pets. So we did a photoshoot 😍 Photos in 🧵!

190

Jay Meistrich @jayz.us · 27/04/2025

Woo awesome! I think some of the native modules might not even be necessary on windows, like that window controls hides the Mac stoplight buttons...

020

Jay Meistrich @jayz.us · 27/04/2025

Nativewind should generally work, it's just the animation props that aren't supported? Or is Windows doing something different?

110

Jay Meistrich @jayz.us · 27/04/2025

Ha cool I was browsing github trending and found my own library 😂

1140

Jay Meistrich @jayz.us · 27/04/2025

Yes it's old arch. I believe rn desktop doesn't support new arch very well yet.

120

Jay Meistrich @jayz.us · 26/04/2025

That might be a big adventure! There's a lot of native modules that I only did the mac version of 😅. Maybe AI can make those easy though :)

230

Jay Meistrich @jayz.us · 26/04/2025

Thanks much for that! ❤️

120