Jazz - build backendless apps
@jazz.tools
Jazz is an open-source toolkit that gives you data without needing a database — plus auth, permissions, files and multiplayer without needing a backend. jazz.tools
Reposted by Jazz - build backendless apps
@anselm.io (@jazz.tools)will help us grapple with the question of when our sync systems become a full-fledged database.
Anselm's talks at Local-First Conf have always been crowd-pleasers, so he's sure to delight at Sync Conf.
Anselm's talks at Local-First Conf have always been crowd-pleasers, so he's sure to delight at Sync Conf.
October 7, 2025 at 3:16 PM
@anselm.io (@jazz.tools)will help us grapple with the question of when our sync systems become a full-fledged database.
Anselm's talks at Local-First Conf have always been crowd-pleasers, so he's sure to delight at Sync Conf.
Anselm's talks at Local-First Conf have always been crowd-pleasers, so he's sure to delight at Sync Conf.
Shipping the feature and going to bed early
September 4, 2025 at 4:51 PM
Shipping the feature and going to bed early
Reposted by Jazz - build backendless apps
People keep asking us if @jazz.tools will have vector search...
What's better than building a first class vector search feature for Jazz in maybe a couple months?
A single person right now being able to ship it as a small, very neat, very high quality library *on top of* Jazz!
vimeo.com/1111603758
What's better than building a first class vector search feature for Jazz in maybe a couple months?
A single person right now being able to ship it as a small, very neat, very high quality library *on top of* Jazz!
vimeo.com/1111603758
Introduction to Jazz Vector
Library that lets you run on-device vector similarity search, built on Jazz database. Learn more: Live demo GitHub repo Jazz database
vimeo.com
August 20, 2025 at 1:41 PM
People keep asking us if @jazz.tools will have vector search...
What's better than building a first class vector search feature for Jazz in maybe a couple months?
A single person right now being able to ship it as a small, very neat, very high quality library *on top of* Jazz!
vimeo.com/1111603758
What's better than building a first class vector search feature for Jazz in maybe a couple months?
A single person right now being able to ship it as a small, very neat, very high quality library *on top of* Jazz!
vimeo.com/1111603758
Reposted by Jazz - build backendless apps
Given our realisation that *actually, @jazz_tools is a database* (see QT)...
...we're hosting another meetup in SF this Wednesday!
(RSVP below!)
Thinking of Jazz as a DB begs the question: how does it fit into the stack?
bsky.app/profile/jaz...
...we're hosting another meetup in SF this Wednesday!
(RSVP below!)
Thinking of Jazz as a DB begs the question: how does it fit into the stack?
bsky.app/profile/jaz...
August 3, 2025 at 4:39 PM
Given our realisation that *actually, @jazz_tools is a database* (see QT)...
...we're hosting another meetup in SF this Wednesday!
(RSVP below!)
Thinking of Jazz as a DB begs the question: how does it fit into the stack?
bsky.app/profile/jaz...
...we're hosting another meetup in SF this Wednesday!
(RSVP below!)
Thinking of Jazz as a DB begs the question: how does it fit into the stack?
bsky.app/profile/jaz...
narrative update
Jazz isn’t replacing databases and backends
Jazz isn’t local-first only
Jazz isn’t a sync engine only
Jazz is simply a *new kind* of database
🧵
Jazz isn’t replacing databases and backends
Jazz isn’t local-first only
Jazz isn’t a sync engine only
Jazz is simply a *new kind* of database
🧵
August 2, 2025 at 5:03 PM
narrative update
Jazz isn’t replacing databases and backends
Jazz isn’t local-first only
Jazz isn’t a sync engine only
Jazz is simply a *new kind* of database
🧵
Jazz isn’t replacing databases and backends
Jazz isn’t local-first only
Jazz isn’t a sync engine only
Jazz is simply a *new kind* of database
🧵
Reposted by Jazz - build backendless apps
The wait is finally over!
It’s time for another
FUTURE OF CODING LONDON
Tuesday, July 22 @ 18:00
Kindly hosted by Granola at their office
Sponsored by @jazz.tools
RSVP here:
lu.ma/lo2medup
Demo/Talk submission here:
foc-london.notion.site/21c379f0e4c...
It’s time for another
FUTURE OF CODING LONDON
Tuesday, July 22 @ 18:00
Kindly hosted by Granola at their office
Sponsored by @jazz.tools
RSVP here:
lu.ma/lo2medup
Demo/Talk submission here:
foc-london.notion.site/21c379f0e4c...
June 24, 2025 at 7:56 PM
The wait is finally over!
It’s time for another
FUTURE OF CODING LONDON
Tuesday, July 22 @ 18:00
Kindly hosted by Granola at their office
Sponsored by @jazz.tools
RSVP here:
lu.ma/lo2medup
Demo/Talk submission here:
foc-london.notion.site/21c379f0e4c...
It’s time for another
FUTURE OF CODING LONDON
Tuesday, July 22 @ 18:00
Kindly hosted by Granola at their office
Sponsored by @jazz.tools
RSVP here:
lu.ma/lo2medup
Demo/Talk submission here:
foc-london.notion.site/21c379f0e4c...
Reposted by Jazz - build backendless apps
Two weeks after alpha-3 which foreshadowed our move to @jazz.tools for greater stability, alpha-4 gets it done!
blog.muni.town/roomy-space-...
Special shoutout to @flo-bit.dev who took the lead on this release.
Up next is bridging so Roomy & Discord (later Matrix) folk can share the same space.
blog.muni.town/roomy-space-...
Special shoutout to @flo-bit.dev who took the lead on this release.
Up next is bridging so Roomy & Discord (later Matrix) folk can share the same space.
Roomy .space (alpha-4)
New domain on roomy.space; backend-switch to Jazz for better performance and access controls; BeeKEM decentralized E2EE explained; notification markers for mentions & unreads.
blog.muni.town
June 20, 2025 at 7:19 PM
Two weeks after alpha-3 which foreshadowed our move to @jazz.tools for greater stability, alpha-4 gets it done!
blog.muni.town/roomy-space-...
Special shoutout to @flo-bit.dev who took the lead on this release.
Up next is bridging so Roomy & Discord (later Matrix) folk can share the same space.
blog.muni.town/roomy-space-...
Special shoutout to @flo-bit.dev who took the lead on this release.
Up next is bridging so Roomy & Discord (later Matrix) folk can share the same space.
Reposted by Jazz - build backendless apps
My full talk from @localfirstconf.com is up!
Featuring 1y of progress on @jazz.tools
And: two big announcements + the most sketchy, yet successful demo I've ever done.
- Waffle, a Discord/Slack alternative built on Jazz
- Soul, our upcoming AI toolkit for Jazz
www.youtube.com/watch?v=e3-y...
Featuring 1y of progress on @jazz.tools
And: two big announcements + the most sketchy, yet successful demo I've ever done.
- Waffle, a Discord/Slack alternative built on Jazz
- Soul, our upcoming AI toolkit for Jazz
www.youtube.com/watch?v=e3-y...
Anselm Eickhoff - How Local First is accidentally perfect for the AI age
YouTube video by Local-First Conf
www.youtube.com
June 6, 2025 at 11:10 AM
My full talk from @localfirstconf.com is up!
Featuring 1y of progress on @jazz.tools
And: two big announcements + the most sketchy, yet successful demo I've ever done.
- Waffle, a Discord/Slack alternative built on Jazz
- Soul, our upcoming AI toolkit for Jazz
www.youtube.com/watch?v=e3-y...
Featuring 1y of progress on @jazz.tools
And: two big announcements + the most sketchy, yet successful demo I've ever done.
- Waffle, a Discord/Slack alternative built on Jazz
- Soul, our upcoming AI toolkit for Jazz
www.youtube.com/watch?v=e3-y...
Reposted by Jazz - build backendless apps
> The AI just is "one more collaborator" and you just dump the tokens into Jazz state as they come in.
This is the correct mental model
This is the correct mental model
So everything in Jazz is architected around that requirement, from the client to the distributed sync & storage infrastructure.
This is a godsend when you start doing AI stuff. The AI just is "one more collaborator" and you just dump the tokens into Jazz state as they come in.
This is a godsend when you start doing AI stuff. The AI just is "one more collaborator" and you just dump the tokens into Jazz state as they come in.
June 4, 2025 at 6:16 PM
> The AI just is "one more collaborator" and you just dump the tokens into Jazz state as they come in.
This is the correct mental model
This is the correct mental model
Reposted by Jazz - build backendless apps
Streamed LLM responses are the perfect example of why we didn't base @jazz.tools on an existing DB, but are building a new backend + DB from scratch.
Originally we just wanted to support Figma/Notion-like apps where we knew we had to sync 100,000s of tiny edits per second... 🧵
x.com/marbemac/st...
Originally we just wanted to support Figma/Notion-like apps where we knew we had to sync 100,000s of tiny edits per second... 🧵
x.com/marbemac/st...
June 4, 2025 at 5:51 PM
Streamed LLM responses are the perfect example of why we didn't base @jazz.tools on an existing DB, but are building a new backend + DB from scratch.
Originally we just wanted to support Figma/Notion-like apps where we knew we had to sync 100,000s of tiny edits per second... 🧵
x.com/marbemac/st...
Originally we just wanted to support Figma/Notion-like apps where we knew we had to sync 100,000s of tiny edits per second... 🧵
x.com/marbemac/st...
Reposted by Jazz - build backendless apps
Sync engines are an incremental improvement to the "centralised server + client" model - the minimal possible step towards the real-time nature of apps today.
But we can do much better 🧵
But we can do much better 🧵
June 4, 2025 at 10:59 AM
Sync engines are an incremental improvement to the "centralised server + client" model - the minimal possible step towards the real-time nature of apps today.
But we can do much better 🧵
But we can do much better 🧵
Reposted by Jazz - build backendless apps
Love meeting new builders online
me: “Hey Jazz supports ProseMirror now, we should build a ProseKit example or something”
*minds my own business for 3h*
@ocavue.bsky.social: “here’s the example”
me: “Hey Jazz supports ProseMirror now, we should build a ProseKit example or something”
*minds my own business for 3h*
@ocavue.bsky.social: “here’s the example”
Just built a CRDT-powered real-time demo with ProseKit + @jazz.tools ⚡️
Multiple editors, synced live — no backend needed.
Multiple editors, synced live — no backend needed.
June 1, 2025 at 2:46 PM
Love meeting new builders online
me: “Hey Jazz supports ProseMirror now, we should build a ProseKit example or something”
*minds my own business for 3h*
@ocavue.bsky.social: “here’s the example”
me: “Hey Jazz supports ProseMirror now, we should build a ProseKit example or something”
*minds my own business for 3h*
@ocavue.bsky.social: “here’s the example”
Reposted by Jazz - build backendless apps
"Local First is accidentally perfect for the AI age"
Great talk from @anselm.io of @jazz.tools on how AI and Local First software are the perfect partners.
Great talk from @anselm.io of @jazz.tools on how AI and Local First software are the perfect partners.
May 27, 2025 at 11:57 AM
"Local First is accidentally perfect for the AI age"
Great talk from @anselm.io of @jazz.tools on how AI and Local First software are the perfect partners.
Great talk from @anselm.io of @jazz.tools on how AI and Local First software are the perfect partners.
Reposted by Jazz - build backendless apps
@localfirstconf.com is off to a fantastic start, the number of new people is mind blowing.
For us at @jazz.tools, today was all about getting hands-on and helping people building cool stuff with Jazz - and handing out our first vibe coding certifications!
For us at @jazz.tools, today was all about getting hands-on and helping people building cool stuff with Jazz - and handing out our first vibe coding certifications!
May 26, 2025 at 3:07 PM
@localfirstconf.com is off to a fantastic start, the number of new people is mind blowing.
For us at @jazz.tools, today was all about getting hands-on and helping people building cool stuff with Jazz - and handing out our first vibe coding certifications!
For us at @jazz.tools, today was all about getting hands-on and helping people building cool stuff with Jazz - and handing out our first vibe coding certifications!
Reposted by Jazz - build backendless apps
my endless shared canvas with @jazz.tools is kinda usable now, come draw something at:
flo-bit.dev/jazz-endless...
flo-bit.dev/jazz-endless...
May 21, 2025 at 9:33 PM
my endless shared canvas with @jazz.tools is kinda usable now, come draw something at:
flo-bit.dev/jazz-endless...
flo-bit.dev/jazz-endless...
Reposted by Jazz - build backendless apps
Megathread of everything we're announcing for @jazz.tools at @localfirstconf.com
It's been a hell of a year in the best sense and I can't wait to share what we've been cooking.
(And this doesn't even include our "one more thing" 🤫)
Stay tuned as I expand on details over the next couple days!
It's been a hell of a year in the best sense and I can't wait to share what we've been cooking.
(And this doesn't even include our "one more thing" 🤫)
Stay tuned as I expand on details over the next couple days!
May 21, 2025 at 1:29 PM
Megathread of everything we're announcing for @jazz.tools at @localfirstconf.com
It's been a hell of a year in the best sense and I can't wait to share what we've been cooking.
(And this doesn't even include our "one more thing" 🤫)
Stay tuned as I expand on details over the next couple days!
It's been a hell of a year in the best sense and I can't wait to share what we've been cooking.
(And this doesn't even include our "one more thing" 🤫)
Stay tuned as I expand on details over the next couple days!
Reposted by Jazz - build backendless apps
Join the @jazz.tools team at Local-First Conf!
- learn how to vibe-code apps with Jazz
- get a first glimpse of AI that “already knows how to use your app”
- learn how to vibe-code apps with Jazz
- get a first glimpse of AI that “already knows how to use your app”
May 21, 2025 at 8:24 AM
Join the @jazz.tools team at Local-First Conf!
- learn how to vibe-code apps with Jazz
- get a first glimpse of AI that “already knows how to use your app”
- learn how to vibe-code apps with Jazz
- get a first glimpse of AI that “already knows how to use your app”
Reposted by Jazz - build backendless apps
I love doing adopter support calls for @jazz.tools
"No you don't need to do that..."
"This extra indirection isn't necessary..."
"Yes, you can use CoValues as both UI state and the persisted source of truth - you don't need to copy back and forth"
"No you don't need to 'save' "
"No you don't need to do that..."
"This extra indirection isn't necessary..."
"Yes, you can use CoValues as both UI state and the persisted source of truth - you don't need to copy back and forth"
"No you don't need to 'save' "
May 14, 2025 at 10:57 AM
I love doing adopter support calls for @jazz.tools
"No you don't need to do that..."
"This extra indirection isn't necessary..."
"Yes, you can use CoValues as both UI state and the persisted source of truth - you don't need to copy back and forth"
"No you don't need to 'save' "
"No you don't need to do that..."
"This extra indirection isn't necessary..."
"Yes, you can use CoValues as both UI state and the persisted source of truth - you don't need to copy back and forth"
"No you don't need to 'save' "
Reposted by Jazz - build backendless apps
Discord driven development
Shoutout to @jmsv.bsky.social for the 3h suggestion-to-🚢
Shoutout to @[email protected] for the months of gruelling work in the ProseMirror mines that made this a quick win
Shoutout to @jmsv.bsky.social for the 3h suggestion-to-🚢
Shoutout to @[email protected] for the months of gruelling work in the ProseMirror mines that made this a quick win
May 10, 2025 at 1:16 PM
Discord driven development
Shoutout to @jmsv.bsky.social for the 3h suggestion-to-🚢
Shoutout to @[email protected] for the months of gruelling work in the ProseMirror mines that made this a quick win
Shoutout to @jmsv.bsky.social for the 3h suggestion-to-🚢
Shoutout to @[email protected] for the months of gruelling work in the ProseMirror mines that made this a quick win
Reposted by Jazz - build backendless apps
Nothing better than telling people to edit just their package.json for a 12x perf improvement.
I still think we can do better for this particular hot path internally.
But their app’s “screen of everything” *cold start* is now bottlenecked by React & the DOM!
bsky.app/profile/jaz...
I still think we can do better for this particular hot path internally.
But their app’s “screen of everything” *cold start* is now bottlenecked by React & the DOM!
bsky.app/profile/jaz...
May 9, 2025 at 11:46 AM
Nothing better than telling people to edit just their package.json for a 12x perf improvement.
I still think we can do better for this particular hot path internally.
But their app’s “screen of everything” *cold start* is now bottlenecked by React & the DOM!
bsky.app/profile/jaz...
I still think we can do better for this particular hot path internally.
But their app’s “screen of everything” *cold start* is now bottlenecked by React & the DOM!
bsky.app/profile/jaz...
Jazz 0.13.20 released - with significant sync and rendering perf improvements
We have been focusing on performance and stability over the last month, polishing our internals, sync protocol, and subscription engine.
We have been focusing on performance and stability over the last month, polishing our internals, sync protocol, and subscription engine.
May 9, 2025 at 10:32 AM
Jazz 0.13.20 released - with significant sync and rendering perf improvements
We have been focusing on performance and stability over the last month, polishing our internals, sync protocol, and subscription engine.
We have been focusing on performance and stability over the last month, polishing our internals, sync protocol, and subscription engine.
Reposted by Jazz - build backendless apps
Security is the most subtle challenge in full-stack apps.
Many devs still re-invent the wheel, building access control with low-level tools like RLS (or worse, ad-hoc backend code) 😱
The security design of @jazz.tools is a godsend for vibe coders (and experienced devs!) 🧵
Many devs still re-invent the wheel, building access control with low-level tools like RLS (or worse, ad-hoc backend code) 😱
The security design of @jazz.tools is a godsend for vibe coders (and experienced devs!) 🧵
April 30, 2025 at 10:45 AM
Security is the most subtle challenge in full-stack apps.
Many devs still re-invent the wheel, building access control with low-level tools like RLS (or worse, ad-hoc backend code) 😱
The security design of @jazz.tools is a godsend for vibe coders (and experienced devs!) 🧵
Many devs still re-invent the wheel, building access control with low-level tools like RLS (or worse, ad-hoc backend code) 😱
The security design of @jazz.tools is a godsend for vibe coders (and experienced devs!) 🧵
Reposted by Jazz - build backendless apps
Very happy with how this comparison page turned out and proud to have co-sponsored it as @jazz.tools!
The fact that such a thorough, fair comparison page could be created by competing vendors and open-source projects is a testament to the spirit of collaboration in the local-first community.
The fact that such a thorough, fair comparison page could be created by competing vendors and open-source projects is a testament to the spirit of collaboration in the local-first community.
Announcing the Local-First Landscape
A comprehensive guide to help developers choose the right tools for building local-first applications.
localfirst.fm/landscape
A comprehensive guide to help developers choose the right tools for building local-first applications.
localfirst.fm/landscape
April 29, 2025 at 5:20 PM
Very happy with how this comparison page turned out and proud to have co-sponsored it as @jazz.tools!
The fact that such a thorough, fair comparison page could be created by competing vendors and open-source projects is a testament to the spirit of collaboration in the local-first community.
The fact that such a thorough, fair comparison page could be created by competing vendors and open-source projects is a testament to the spirit of collaboration in the local-first community.
users in Portugal and Spain are asking us if we can make Jazz even more batteries included 🫂
April 28, 2025 at 5:58 PM
users in Portugal and Spain are asking us if we can make Jazz even more batteries included 🫂