ElectricSQL

We're just magic good sleep enablers! 😎

120 days of hardening – the post‑1.0 reliability sprint | ElectricSQL Our last quarter was a reliability sprint. We set one goal: make ElectricSQL so boring‑reliable that you stop thinking about it and just build.

electric-sql.com/blog/2025/08...

We fixed IPv6 fallbacks, WAL slot recovery, memory leaks, file handle exhaustion, replication races, and dozens more issues.

The boring stuff that makes infrastructure work. Because when AWS launched S3, they didn't lead with features — they led with eleven nines. 🎯

Some highlights from our sprint:

• Connection recovery: 18s → 1.2s median recovery time
• Zero-downtime operations: clients stay connected through restarts
• Live schema changes: Electric adapts as your database evolves
• Better observability: see exactly what's happening

The results? @triggerdotdev.bsky.social achieved 20,000 updates/sec with sub-100ms latency handling 500GB+ daily Postgres traffic using Electric. Our Cloud syncs data to devices in 100+ countries monthly.

How? Postgres + HTTP foundation + serious reliability engineering.

Infrastructure software can't have bugs. Your sync layer is load-bearing infrastructure with database-level expectations.

We looked to S3 (11 nines!) and Redis for inspiration. They're simple ideas made extraordinary through relentless reliability engineering.

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. 🧵

RFC: Cross-Table Shape Filtering with Subquery Support · electric-sql electric · Discussion #2931 Summary Electric currently limits shapes to single-table filtering, preventing developers from expressing common authorization patterns that require cross-table relationships. This RFC proposes ext...

We just posted an RFC for a significant oft-requested feature — cross-table shape filtering — check it out and comment!

github.com/electric-sql...

We look forward to collaborating more to make TanStack DB the future of app development with Electric and the best way to build the new generation of AI apps and agentic systems.

It's been a pleasure to partner with @tannerlinsley.com and the @tanstack.com team on this.

HT to @kyle.bricolage.io and @samwillis.uk for leading the work from our side.

Local-first sync with TanStack DB and Electric | ElectricSQL Tanstack DB is a reactive client store for building super fast apps on sync. Paired with Electric, it provides an optimal end-to-end sync stack for local-first app development.

Paired with Electric, TanStack DB provides an optimal end-to-end sync stack for local-first app development.

electric-sql.com/blog/2025/07...

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.

Stop Re-Rendering — TanStack DB, the Embedded Client Database for TanStack Query | TanStack Blog Your React dashboard shouldn't grind to a halt just because one TODO turns from ☐ to ☑. Yet every optimistic update still kicks off a cascade of re-renders, filters, useMemos and spinner flashes. If y...

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...

🎉 TanStack DB now has @solidjs.com support!

<script lang="ts"> import { useLiveQuery } from "@tanstack/svelte-db" import { eq } from "@tanstack/db" import { todoCollection } from "$lib/collections" const todosQuery = useLiveQuery((query) => query .from({ todos: todoCollection }) .where(({ todos }) => eq(todos.completed, false)) ) </script> <List items={todosQuery.data} />

TanStack DB now has @svelte.dev support!

PGlite (WASM Postgres) now gets over 1 million downloads a week! 🤯🚀
Absolutely incredible to see how people have embraced what we have built.
Awesome work by the team!

YouTube video by San Francisco Bay Area PostgreSQL Users Group "Syncing Postgres into the Client" with James Arthur

Building apps on Postgres? Here how to do it using sync: youtu.be/mDzzK5-XkZ8?...

Excited to release a new starter! Sync-first, production-ready, and blazing fast

- @tanstack.com Start
- @tanstack.com DB for blazing fast client-side queries
- @electric-sql.com for real-time sync from PG
- Better-Auth
- @drizzleorm.bsky.social
- @tailwindcss.com
- Hono OpenAPI

We want to be like S3 and Redis — powerful technologies that you setup once and never think about again.

If you look at our commit history, it's months of bug fixes and performance improvements. It's this sort of sustained effort to surface and fix every bug that will enable Electric to hit the quality bar.

The main obstacle to sync is it's a new black box. Is it reliable/fast enough to drive critical data flows? People rightfully have a db-level quality bar.

If it seems like Electric has been quiet lately, it's because we're 100% focused on meeting this bar.

Really looking forward to Sync London tomorrow!
A bunch of exciting talks from teams building real apps on sync engines 🚀🥳

Sync London · Luma Interesting 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…

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!

Excited to share a new starter for building apps with
@expo.dev , @tanstack.com DB & @electric-sql.com

TanStack DB is nearing its first alpha so we're fine-tuning, writing docs, and building starters.

"Syncing Postgres into the Client" with James Arthur, Tue, Jun 10, 2025, 12:00 PM | Meetup Join us virtually on Tuesday, June 10th for "Syncing Postgres into the Client" with James Arthur. Postgres has binary and logical replication for syncing data between repl

I'm speaking about syncing Postgres into the client with
@electric-sql.com at the SF Bay Area Postgres users groups tomorrow (Tuesday 10th June).

Online from noon local time, live stream here: www.meetup.com/postgresql-1...

Here’s @samwillis.uk talking about how we built @pglite.dev and the future of the project at @pgconf.dev in Montreal last month.

YouTube video by Local-First Conf James Arthur - Introducing TanStack DB

Here's my @localfirstconf.com talk introducing @tanstack.com DB, hexdocs.pm/phoenix_sync, syncconf.dev and arguing that Sync is the key to mainstream adoption of #local-first.

youtu.be/ia9FpY_Sw_4?...

Vibe coding with a database in the sandbox | ElectricSQL More play less infra. With PGlite you can vibe code with a database built into the sandbox.

Blog post for more details, including the prompt templates: electric-sql.com/blog/2025/06...

🧵 More play less infra => vibe coding with the database inside the sandbox.

Apps built with AI app builders like @bolt.new usually need to connect to a database to actually work. With @pglite.dev you can have the database inside the sandbox, so you can vibe code without even thinking about infra.

Sync Conf 2025 | 12th Nov 2025, SF Join 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.

Early-bird tickets and CFP both still open for Sync Conf in SF on Nov 12th syncconf.dev