PowerSync

Simon Binder | fluttercon EU

More info:

www.fluttercon.dev/speakers/si...

Simon Binder will be in action again at Fluttercon Europe in September, talking about

𝙎𝙞𝙢𝙥𝙡𝙚𝙧 𝙨𝙩𝙖𝙩𝙚 𝙢𝙖𝙣𝙖𝙜𝙚𝙢𝙚𝙣𝙩 𝙬𝙞𝙩𝙝 𝘿𝙖𝙧𝙩 𝙤𝙣 𝙩𝙝𝙚 𝙨𝙚𝙧𝙫𝙚𝙧 𝙖𝙣𝙙 𝙨𝙮𝙣𝙘𝙚𝙙 𝙙𝙖𝙩𝙖𝙗𝙖𝙨𝙚𝙨

🚀 🇪🇺

Beta Release of the PowerSync Node.js Client SDK Overview Back in March 2025 we shipped the Node.js client SDK into alpha , bringing PowerSync’s real-time sync capabilities to Node apps such as backend...

Release notes:

releases.powersync.com/announcemen...

𝗕𝗲𝘁𝗮 𝗿𝗲𝗹𝗲𝗮𝘀𝗲: Node.js Client SDK

After shipping a bunch of improvements and bug fixes, we're now confident the SDK is ready for production use (once you’ve tested your use cases), so we’re bumping it to beta.

npm install @powersync/node

cc: @nodejs.org‬

Expo Go support via @powersync/adapter-sql-js (Alpha) Overview PowerSync applications are now compatible with Expo Go Expo Go is a pre-built sandbox environment that lets you quickly prototype and test apps, but...

Release notes:

releases.powersync.com/announcemen...

PowerSync applications are now compatible with @Expo.dev Go!

We’ve released a pure JavaScript SQLite adapter for our React Native SDK, @powersync/adapter-sql-js, which works in sandboxed environments like Expo Go by using our custom fork of SQL.js.

🎤 Talk: Adopting native assets for cross-platform FFI plugins👤 Speaker: Simon Binder 📍 Event: Fluttercon USA 2025📅 Date: 25-26 June, 2025---🔗 Learn more... Adopting native assets for cross-platform FFI plugins - Simon Binder | Fluttercon USA 2025

His talk:

www.youtube.com/watch?v=xUN...

My Reflections on Fluttercon USA 2025 Reflections on Fluttercon USA 2025 in New York, featuring insights on Dart’s upcoming code assets feature, highlights from standout talks, and thoughts on how the conference can improve.

www.powersync.com/blog/my-ref...

Simon Binder reflects on Fluttercon USA 2025 in New York

"At a previous Fluttercon I attended, I had the impression that there were relatively few intermediate and advanced talks, so it was good to see more variance this time. "

Link next ↓

CC: @flutter.dev‬

Introducing Incremental and Differential Watch queries for JavaScript Overview Today we are introducing incremental and differential watch queries for our JavaScript SDKs (Web, React Native and Node.js). Watch queries are...

Release Notes

releases.powersync.com/announcemen...

𝗡𝗲𝘄 𝗥𝗲𝗹𝗲𝗮𝘀𝗲: Incremental & Differential Watch Queries for JavaScript 🚀

Build snappier UIs w/o excessive re-renders.

• 𝗜𝗻𝗰𝗿𝗲𝗺𝗲𝗻𝘁𝗮𝗹 𝗾𝘂𝗲𝗿𝗶𝗲𝘀: return results only when the rows you care about change.
• 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁𝗶𝗮𝗹 𝗾𝘂𝗲𝗿𝗶𝗲𝘀: sends a structured diff of updates so you make more fine-grained UI patches.

Introducing: Raw SQLite Tables support (Experimental) Current JSON-based SQLite Views System By default, PowerSync uses a JSON-based view system to store data schemalessly in JSON format and then presented...

Release notes:

releases.powersync.com/announcemen...

Now available in:
• JS (Web 1.24.0, RN 1.23.0, Node 0.8.0)
• Dart 1.15.0
• Kotlin & Swift 1.3.0

Requires our new Rust-based sync client.

🧪 Experimental — we’d love your feedback in Discord!

To use this:

1. Manually create SQLite tables
2. Define SQL for mapping synced JSON → tables
3. Define triggers to send local changes back to PowerSync

Docs include full examples.

🚨 Experimental Feature: Raw SQLite Tables

Go beyond JSON-based SQLite views, to native tables for:
• Foreign keys & cascading deletes
• Custom indexes & triggers
• Faster complex queries
• Less JSON overhead

The kind of work no one sees… but everything depends on 🧹

✅ Core of @fitwoody.camp fully rewritten
✅ Swift 6 + modern concurrency
✅ Own backend: @supabase.com + @powersync.com
✅ Goodbye to 1.0’s technical debt

Not flashy work, but it’s what holds everything together.
Now the fun🔥 #buildinpublic

PowerSync Update: June 2025 We’re trying something new: inspired by the ink slingers at Fly.io, we’re experimenting with mostly text-based product newsletters. If you can get through this issue before your morning coffee hits the halfway mark, we’re doing it right. Here’s what we’ve been up to.

www.powersync.com/blog/powers...

We're trying something new for our June newsletter 👀

Inspired by Fly[dot]io, we're sharing more about the engineering reasoning behind our latest product updates.

Read about implementing sync logic in Rust, multiple improvements to our server-side sync service, our .NET MAUI package and more.

Email notifications for PowerSync Cloud instance alerts You can now enable email notifications for any alert configured for your PowerSync Cloud instances. Instead of manually checking the dashboard, you can now...

Release notes:

releases.powersync.com/announcemen...

📣 𝗡𝗲𝘄 𝗿𝗲𝗹𝗲𝗮𝘀𝗲: Email alerts for PowerSync Cloud instances.

No need to babysit the dashboard — get notified when replication or DB connection problems occur.

Available on all plans.

Pro/Team/Enterprise users still get webhooks too.

Introducing our .NET MAUI SDK (Alpha) After launching our .NET SDK in March, we quickly began work on supporting .NET MAUI - and today we’re excited to announce the alpha release of the...

Release notes:

releases.powersync.com/announcemen...

🚀𝗔𝗻𝗻𝗼𝘂𝗻𝗰𝗶𝗻𝗴: PowerSync for .NET MAUI (Alpha)!

Add real-time synced SQLite to your cross-platform MAUI apps — Android, iOS & Windows.

Demo:

How We Converged On the Optimal Docs Setup For Our DevTool Product We've been writing developer documentation for over a decade. During that time, we've cycled through more documentation platforms than we’d like to admit: including various off-the-shelf documentation framework providers and building our own custom docs framework. Plenty of lessons were learned along the way.

www.powersync.com/blog/how-we...

We've been writing developer documentation for over a decade.

It has not always gone smoothly.

Read about our journey and advice.

(just use @mintlify.bsky.social)

Local-first software is quietly becoming the norm. Apple's new Foundation Models framework lets developers build AI that runs entirely on your device - no cloud required.

#LocalFirst #PrivacyByDesign #DataSovereignty #AppleIntelligence #TechPrivacy

Happening today at #ftcon25usa!

Improved sync performance in our client SDKs The release of v0.4.0 of the PowerSync SQLite Extension ( powersync-sqlite-core ) in our client SDKs introduces a new sync client implemented natively in the...

releases.powersync.com/announcemen...

𝗡𝗲𝘄 𝗿𝗲𝗹𝗲𝗮𝘀𝗲: v0.4.0 of the our #SQLite extension introduces a new sync client which significantly improves sync performance — especially with large datasets.

This brings smoother UI interactions during large sync operations (esp. on React Native). This lays the foundation for BLOB column support.

It seems that most companies developing local-first solutions (sync engines) are gearing their products toward integration with any backend, even with traditional REST APIs. That’s a good thing. 👏

#localfirst

feat: MAUI support by Chriztiaan · Pull Request #9 · powersync-ja/powersync-dotnet WIP - Introduced MAUI package which allows users to load a target appropriate core extension and use the Common package on MAUI iOS/Android. Work Introduce MAUI package iOS/Android Support Mac ...

👀 👀

github.com/powersync-j...