James Arthur

James Arthur

@thruflo.com

CEO & Co-founder @electric.ax

2.4K followers440 following99 posts

Previously, to build realtime apps you've needed some sort of special sync system. With Neon Realtime you now get realtime reactivity built directly into Postgres.

Neon@neon.com

Neon now has realtime, built by the team behind Electric. Turn any SQL query into a live query, joins and aggregates included. All inside Postgres, and ready for agents. It’s in public beta and available in all Neon plans. Give it a try and tell us what you think! neon.com/blog/neon-no...

James Arthur reposted

Neon now has realtime, built by the team behind Electric. Turn any SQL query into a live query, joins and aggregates included. All inside Postgres, and ready for agents. It’s in public beta and available in all Neon plans. Give it a try and tell us what you think! neon.com/blog/neon-no...

If you're running into multi-agent coordination challenges, it's a great time to give Electric Agents a try.

ElectricSQL@electric.ax

Electric Agents 0.6 is out, with a whole bunch of DX and AX improvements,, including local and remote agent runners, desktop and mobile apps. If you haven't tried it yet, now's a great time to dive in: electric.ax/blog/2026/06...

James Arthur reposted

Electric Agents 0.6 is out, with a whole bunch of DX and AX improvements,, including local and remote agent runners, desktop and mobile apps. If you haven't tried it yet, now's a great time to dive in: electric.ax/blog/2026/06...

electric.axElectric Agents 0.6 | ElectricElectric Agents 0.6 rounds out the platform launched in April with a broader SDK and runtime surface for long-lived entities, StreamDB state, runners, wakes, signals, schedules, app APIs, and multi-ag...

James Arthur reposted

Introducing Electric Agents! Agents are not compute. Agents are data. Multi-agent is a sync problem. Electric Agents is the first agent platform built on sync. Use it to build scalable, collaborative, long-lived multi-agent systems: 🧵👇

James Arthur reposted

James Arthur reposted

PGlite v0.4 is out 🚀 PostGIS, connection multiplexing, and a major architecture refactor - bringing embedded Postgres closer to native. Now at 13M+ weekly downloads and showing up everywhere from CI to browser-based dev environments. electric-sql.com/blog/2026/03...

electric-sql.comAnnouncing PGlite v0.4: PostGIS, connection multiplexing, and a new architecture | ElectricSQLPGlite v0.4 adds PostGIS, connection multiplexing, and a refactored architecture that decouples initdb from the main WASM binary.

James Arthur reposted

for this holiday season we've added little fairies to tldraw.com who can work with you on the canvas. they're not very good but they try hard. and they can work together!

You didn’t think we weren’t going to drop something big today for @syncconf.bsky.social did you? Query-driven sync. In @tanstack.com DB. No re-write needed. Let’s do this 🔥

TANSTACK@tanstack.com

🚀 TanStack DB 0.5 is here with Query-Driven Sync Your component's query IS the API call. No custom endpoints. No GraphQL resolvers. Just write your query and DB figures out exactly what to fetch. Details 🧵👇

James Arthur reposted

🚀 TanStack DB 0.5 is here with Query-Driven Sync Your component's query IS the API call. No custom endpoints. No GraphQL resolvers. Just write your query and DB figures out exactly what to fetch. Details 🧵👇

One day boutique conference for the sync era of the web. Hear from the world's top builders about how to develop systems in the era of agentic software and real-time sync.

Sync Conf@syncconf.bsky.social

Announcing Sync Conf 2025. Join us in SF on Nov 12th.

Agentic AI, beneath all the hype, is actually just normal software. You can build agentic systems with a database, standard web tooling and real-time sync.

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There's obviously a lot of work involved in putting those aspects together to create a working agentic product. However, from an *infra* point of view, there's nothing there that doesn't pattern match to a database, some processes and real-time sync.

For me, as a generalist software engineer, that's really exciting. Because it brings this whole revolution of agentic systems right back into my wheelhouse.

Agentic AI, beneath all the hype, is actually just normal software. You can build agentic systems with a database, standard web tooling and real-time sync.

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Instructing LLMs means sending an instruction to an LLM. Agentic memory is where you store data that those instructions are based on. Retrieval is the ability to query that data. Context engineering retrieves and formats the right information to send in the instruction.

Agentic AI, beneath all the hype, is actually just normal software. You can build agentic systems with a database, standard web tooling and real-time sync.

James Arthur reposted

I'm sure if it weren’t for AI, the web dev community would be talking a lot more about sync engines and TanStack DB right now. I just published a short video + blog post to share why I’m so excited about TanStack DB and ElectricSQL! youtu.be/OKHYUISDYmk

youtu.beTanStack DB with Sync: Real-time UI and Optimistic UpdatesYouTube video by Andre Landgraf
Neon@neon.com

TanStack DB with Sync provides an exciting new way to add end-to-end reactivity to your web applications, including optimistic UI updates. 🧵

James Arthur reposted

TanStack DB with Sync provides an exciting new way to add end-to-end reactivity to your web applications, including optimistic UI updates. 🧵

James Arthur reposted

ElectricSQL recently completed a 120-day reliability sprint. Our one goal: make our sync engine so boring-reliable you stop thinking about it and just build. We chased every incident, fixed every user-reported bug, and made unglamorous work our priority. 🧵

I know I wrote the blog post but holy fuck this is good.

James Arthur reposted

Tanstack DB is a reactive client store for building super fast apps on sync. Based on a TypeScript implementation of differential dataflow, it's type-safe, declarative, incrementally adoptable and insanely fast.

Kyle Mathews@kyle.bricolage.io

TanStack DB is now in BETA! We’ve been working on TanStack DB, an embedded, reactive client database for TanStack Query, and are proud to announce today that with the 0.1 release that it's now in BETA! tanstack.com/blog/tanstac...

James Arthur reposted

Very excited to have reached the Beta milestone with @tanstack.com DB 🚀🎉 It’s been a privilege to work with @tannerlinsley.com and the team on building this, absolute rock stars!

Kyle Mathews@kyle.bricolage.io

TanStack DB is now in BETA! We’ve been working on TanStack DB, an embedded, reactive client database for TanStack Query, and are proud to announce today that with the 0.1 release that it's now in BETA! tanstack.com/blog/tanstac...

James Arthur reposted

James Arthur reposted

Rare opportunity! Come work at Ink & Switch. Help us make Automerge the best substrate for experimental programming tools and production software alike.

Ink & Switch@inkandswitch.com

Do you write TypeScript? Enjoy Automerge? Love building both tools and community? You might be a great fit for our ✨new✨ Automerge TypeScript Maintainer role! www.inkandswitch.com/jobs/automer... (Remote role, 🇬🇧 UK-based preferred but not required)

But what if you've already got a cloud-side or API-based app running on Postgres? How do you incrementally adopt sync and how do you do this without changing your data model or your existing code?

Building on a sync-engine architecture makes apps fast, resilient and collaborative. It's the key to modern UX and collaborative AI and agentic systems.

Not long now! lu.ma/sync-london Talks are shaping up great and we’re well past venue capacity. @yonz.bsky.social is airborne. @samwillis.uk has sorted out the pineapple cubes and cocktail sausages. If you’re in London on Tuesday and have been lurking so far, now’s your last chance!

lu.maSync London · LumaInteresting in building products on a local-first / sync engine architecture? Come along to the first Sync London, a meetup to learn and talk about better ways…

James Arthur reposted

"wallclock based yolo conflict resolution is the powerhouse of the decentralized system." TRUTH Also I should be making plans to go to Sync Conf syncconf.dev

syncconf.devSync Conf 2025 | 12th Nov 2025, SFJoin us for the first edition of Sync Conf in San Fransisco the 12th of November 2025. Sync is a key component of fast modern apps and local-first software.
Mauve 👁💜@mauve.moe

> looking at a new sync engine > ask devs if it's using wallclock based last write win registers with oplogs or literally any other CRDT > they laugh and say "it's a good sync engine, mage" > read code > it's a wallclock based last write wins register with fully replicated oplogs wallclock […]