Chris Nicholas

I've built an open-source Slack clone! It has threaded messages, DMs, AI collaborators, activity feed, more! It's all powered by a single @liveblocks.io multiplayer primitive—feeds. Get it ↓

It also supports multiple workspaces, statuses, and live presence. Feeds is really interesting, you can put any realtime paginated state in there, such as messages, activity data, emoji reactions, and it syncs automatically.

I've built an open-source coding agent tool! Jev classifies every message—the chats are multiplayer, and humans can talk normally, but if Jev recognises a coding request or question, it hops in and triggers the correct agent. Get it + info ↓

There's some other features too! Add skills by putting markdown files into the /skills folder. Plus, if you're not in the chat, you get a notification when an agent has finished coding.

I've built an open-source coding agent tool! Jev classifies every message—the chats are multiplayer, and humans can talk normally, but if Jev recognises a coding request or question, it hops in and triggers the correct agent. Get it + info ↓

It's not just for coding, you can also generate markdown documents together! Plus, after the agent's created a file, you can hop in and edit it in real-time with others. The multiplayer chat and editor are both powered by @liveblocks.io!

I've built an open-source workflow builder for Jev! Experiment with a UI—classify inputs using choices, scores, booleans; wire results into other prompts; and return a set of custom outputs. Below I've set up a support system that can help with various queries. Features ↓

And of course it's a multiplayer editor! It uses the React Flow package for @liveblocks.io, which automatically syncs state between multiple users.

I've built an open-source workflow builder for Jev! Experiment with a UI—classify inputs using choices, scores, booleans; wire results into other prompts; and return a set of custom outputs. Below I've set up a support system that can help with various queries. Features ↓

Each workflow exposes a REST API which you can call in your own code. Here's a cURL example in the terminal!

I love that Jev can fit into basically any app. You don't need to build everything around a chat, you can just integrate intelligent features into the background, like these auto-fill buttons. Much better UX than with slow LLMs. Feels like the missing piece!

It's actually multiplayer here too—it uses liveblocks.io/sync to sync document state and presence. As soon as its results are returned, I update the document with the new values, from the server.

Jev enables instant AI suggestions 👏 In this app, 20+ intelligent checks occur every time you edit a cell, immediately providing warnings. No LLMs necessary!

And if you know me already, it's multiplayer of course! It works brilliantly with @liveblocks.io Sync, which allows you to store realtime document and agent state. Having such a quick AI makes it feel almost local.

Jev enables instant AI suggestions 👏 In this app, 20+ intelligent checks occur every time you edit a cell, immediately providing warnings. No LLMs necessary!

Our homepage now has a multiplayer game! ✦ Real-time cursors & physics. ✦ Ripples & web page reflections. ✦ Secret code unlocks the easter egg. → lblcks.io/WJGKiD9

We shipped a Yjs alternative for collaborative text editing! LiveText is a new data type for @liveblocks.io. It's quicker, simpler, and smaller than a CRDT, and integrates into four popular text editors. And there's more ↓

And unlike Yjs, there are no tombstones, so documents never grow over time. A doc edited daily for years loads as fast as one written yesterday. Your text is plain, readable data too, with no binary types to handle.

We shipped a Yjs alternative for collaborative text editing! LiveText is a new data type for @liveblocks.io. It's quicker, simpler, and smaller than a CRDT, and integrates into four popular text editors. And there's more ↓

Because LiveText is a conflict-free type like LiveObject and LiveList, you can use it directly in your Storage tree too. You can create a whole multiplayer data tree, and nest your LiveText content fields inside it.

We shipped a Yjs alternative for collaborative text editing! LiveText is a new data type for @liveblocks.io. It's quicker, simpler, and smaller than a CRDT, and integrates into four popular text editors. And there's more ↓

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Code editors are supported too! For example, here's the popular CodeMirror editor.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Permissions are built in, allowing you to control which users, and groups of users, should have access to the document. Use REST APIs to create share dialogs like you'd find in Notion or Google Docs.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Your Storage data comes with version history, allowing you to revert documents to their previous state. I'd recommend creating a new snapshot before applying changes made by AI, but you can also set it up to periodically save state.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Here's one way to hook `useFeedMessages` into a chat app. You can quite easily do it with any existing UI library.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

For example, with a spreadsheet, you might generate a new cell value, and then apply it to the document. Running the following code will update the spreadsheet in real-time for all connected users.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

More complex presence need `useUpdateMyPresence`, allowing you to attach live JSON values to users. For example, you can add an outline to a `textarea`, when a user selects it, by giving each user a `selection: string | null` value, representing the box they're editing.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Another feature is presence. Connected users can show their activity, like with cursors, selections around elements, or an avatar in a stack.

Liveblocks Sync is the sync engine designed for the agentic web. Add conflict-resolved multiplayer to any React app, so that humans and agents can edit the same state, at the same time. lblcks.io/sync Here's how it works ↓

Storage is the main building block, a primitive for storing multiplayer state. It comes with conflict-free data types such as `LiveObject`, which is similar to a JS object that multiple users can edit simultaneously For example, here's how a slideshow app might be constructed.