For @kotlinlang.org developers – PowerSync now supports integrations for SQLDelight (beta) and Room (alpha). Why use these libraries? • compile-time validation of queries • automatic mapping into typed classes This makes writing SQL queries and parsing results on the client safer.

"Even though SQL is probably older than you are, it’s still the go-to mechanism for expressing most data querying needs." - Chriztiaan_dev

Using @expo.dev with real-time synced SQLite means that instead of having to: • manage network requests • handle loading states • implement retry logic • orchestrate state management between your local cache and remote data You just write queries™

To reduce duplication and improve performance, we built a new Rust client for the PowerSync SDKs: we expanded our existing custom SQLite extension written in Rust to include a client state machine for the PowerSync protocol. 🧵

We’ve published a new long-form video on setting up a Swift app with PowerSync 🎉 www.youtube.com/watch?v=GYQ...

We've simplified our pricing. Overall, these changes should lower usage costs for everyone. www.powersync.com/blog/simpli...

Our August newsletter covers major product updates but it also introduces Sync Streams: a major update to our dynamic partial replication system that we're currently working on.

🔨 𝗡𝗲𝘄 𝗽𝗿𝗼𝗽𝗼𝘀𝗮𝗹: Syncing binary data github.com/powersync-j...

Hit this toggle on our diagnostics app if you're using our new Rust-based sync client.

Day 31: I have been tinkering with syncing my offline sqlite DB with my remote database and damn it’s hard. Recently, I found out about powersync and their cool plug and play solution for exactly this. They have nice dart package for it and it also works with drift DB. Very promising. #flutter

@k081e.bsky.social‬ and Steven present a demo and workshop on using PowerSync with Swift at Denver Cocoaheads on Tuesday, Sep 9. RSVP here: www.meetup.com/cocoaheadsd...

We've started creating public proposals on GitHub for major product improvements being considered/planned. The goal is to get more community feedback, earlier. 🧵 with the first round of proposals↓

Catch Simon Binder's talk at Fluttercon EU in Berlin later this month.

The quickest way to spin up a PowerSync app is by using a fully self-hosted setup with @supabase.com and our @vite.dev template app.

𝗡𝗲𝘄 𝗿𝗲𝗹𝗲𝗮𝘀𝗲: High performance diffs (experimental 🧪) Differential watch queries allow fine-grained UI updates by scanning tables to spot diffs. They're powerful, but can become slow on large tables. Trigger-based diffs solve this by (1) only processing the rows that changed, not the full dataset &

PowerSync 🤝 Expo

We've updated our comparison post of @reactnative.dev‬ local database options, including work by @ospfranco.com‬, @expo.dev‬, and @livestore.dev‬. Link ↓ www.powersync.com/blog/react-...

Proof of concept integration between the @powersync.com Swift SDK and Structured Queries by @pointfree.co Should be able to ship this :) github.com/powersync-ja...

Ok, ready to wrap up the ground work! ✅ Firebase -> Supabase, both database and auth ✅ PowerSync in place and API layer refactored accordingly ✅ Some touch ups stirred up by the refactoring Now to make sure migrating goes smooth for users on the new version. #buildinpublic #iosdev #indiedev

Swift developers in Denver: Join the Denver Cocoaheads meetup on Sep 9 for a hands-on session w/ @k081e.bsky.social‬ and Steven, one of the engineers behind our Swift SDK. We’ll share how it keeps backend databases in sync with SQLite embedded in iOS/macOS/watchOS apps in a workshop context.

React developers regularly asked about support for React memoization in useQuery-based components. Read the story of how 𝙄𝙣𝙘𝙧𝙚𝙢𝙚𝙣𝙩𝙖𝙡 𝙒𝙖𝙩𝙘𝙝𝙚𝙙 𝙌𝙪𝙚𝙧𝙞𝙚𝙨 enables that in our July update. ↓

PowerSync MySQL backend database support has reached Beta!

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: 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

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.

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

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.

🚨 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

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.

📣 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.

🚀𝗔𝗻𝗻𝗼𝘂𝗻𝗰𝗶𝗻𝗴: PowerSync for .NET MAUI (Alpha)! Add real-time synced SQLite to your cross-platform MAUI apps — Android, iOS & Windows. Demo:

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!

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

👀 👀 github.com/powersync-j...

And the winner is... #ftcon25usa #FlutterDev

Last day to enter our ticket giveaway! #ftcon25usa #FLutterDev

Upstream providers rn

Structured, domain-specific context improves generative AI responses. If you're building an AI assistant for a distributed environment, a sync engine is a useful way to keep context data updated between local user devices & the cloud. @mongodb.bsky.social‬ explains using PowerSync for this:

One of our team members can't make it to fluttercon USA so we're giving away their ticket. Enter by this Friday, the 13th. CC: @fluttercommunity.dev‬ #ftcon25usa #FlutterDev

Our May update is out. @localfirstconf.com report, fine-grained update tracking (vs only the final state of the row), OP-SQLite support now in beta (production-ready), @FlutterFlow.io library improvements, macOS support, better DX for self-hosters and more. Link below 👇

𝗡𝗲𝘄 𝗥𝗲𝗹𝗲𝗮𝘀𝗲: ‪‪@flutterflow.io‬ Library v0.0.9 adds custom backend support! This update introduces support for custom backend connectors (i.e. disabling the Supabase integration), by implementing your own fetchCredentials() and uploadData() methods as a custom action 🔥

𝗡𝗲𝘄 𝗴𝘂𝗶𝗱𝗲: using PowerSync with popular #Flutter state management libraries. This explains how PowerSync’s Flutter SDK integrates with popular state management libraries for more sophisticated approaches. docs.powersync.com/client-sdk-...

PowerSync automatically syncs your backend database with reactive in-app SQLite.

True!

A shared Kotlin core. A native Swift interface. Steven Ontong shares how we built our Swift SDK with SKIE. www.powersync.com/blog/buildi...

Synced in-app SQLite is a game changer.