Matrix-CRDT – real-time collaborative apps using Matrix as backend
Hi HN! Matrix-CRDT connects the worlds of Yjs [1] (a proven, high performance CRDT) with that of Matrix.org [2]. It started as an experiment, asking myself; can we store "state updates of a datastore" in Matrix instead of chat messages? Now, I'm convinced it's actually a really powerful combination to develop real-time, collaborative software. I'm using it for a new project and so far didn't have to write a backend yet. Matrix takes care of a lot of stuff: Authentication, E2EE, federation, hosting, etc. - so I can focus on the client. I love the ideas of Local First [3] software. Personally,…
What it does
In the maker’s words, at launch
Hi HN! Matrix-CRDT connects the worlds of Yjs [1] (a proven, high performance CRDT) with that of Matrix.org [2]. It started as an experiment, asking myself; can we store "state updates of a datastore" in Matrix instead of chat messages? Now, I'm convinced it's actually a really powerful combination to develop real-time, collaborative software. I'm using it for a new project and so far didn't have to write a backend yet. Matrix takes care of a lot of stuff: Authentication, E2EE, federation, hosting, etc. - so I can focus on the client. I love the ideas of Local First [3] software. Personally, I'm convinced the technologies in this ecosystem (CRDTs, etc) are really powerful and can do more to decentralize software than many web3 technologies that currently receive much of the hype. However, it's still early days, so I decided to open source parts that I think will be useful to others (I recently also shared SyncedStore [4]) [1] https://github.com/yjs/yjs [2] https://www.matrix.org [3] https://www.inkandswitch.com/local-first/ [4] https://www.syncedstore.org
Does the same job
all alternatives →- YIYboard is a multiplayer desktop-like workspace based on CRDT2022 · github.com · ▲165
I've always been curious about real-time multiplayer user interfaces. When I found out about CRDTs and Yjs[1] I thought they could serve as a solid base for a project like that. So I built this pretty simple desktop-like UI (heavily inspired by lifeat.io) and used Yjs to replicate the whole UI state among multiple peers, creating the experience of a unique interface. Try online: https://yboard.lol [1]: https://github.com/yjs/yjs
- PCPg_CRDT – an experimental CRDT extension for Postgres2022 · supabase.com · ▲296
This is an experimental extension for CRDTs, pg_crdt: GitHub repo[0]. It supports Yjs/Yrs and Automerge. The linked blog post [1] describes how we're thinking about this extension in a Supabase context. I want to emphasise this part: "pg_crdt has not been released onto the Supabase platform (and it may never be). We’re considering many options for offline-sync/support and, while CRDTs will undoubtedly factor in, we’re not sure if this is the right approach." [0] GitHub repo: https://github.com/supabase/pg_crdt [1] Blog post:…
- COCollaborate on your YC Application with CRDT-powered forms2024 · togetherform.com · ▲22
Hi HN, Like many of you here, this is not my first time applying to YC. Each time, my co-founder and I would copy the YC application to google docs to collaborate on it, then we copy it back to submit. This got us thinking - why can't we just collaborate on the YC application in the YC application? At one point I went down the CRDT rabbit hole and realized collaborative forms would be a great use of CRDTs, so I decided to build this out to an MVP. If you're curious about CRDTs (Conflict-Free Replicated Data Types) and how they differ from OT (Operational transformation, which is what powers…
- ALA local-first, real-time global canvas using CRDTs2023 · draw.cachapa.net · ▲7
This is a demo of a family of libraries intended to make it easy to build local-first, real-time applications for mobile, desktop and the web using CRDTs. It currently has support for using Sqlite, PostgreSQL or a plain old record store (Hive) as data storage backend. https://github.com/cachapa/crdt There's also a websocket sync layer that transparently handles the connection and delta changesets between participants. https://github.com/cachapa/crdt_sync
- IBI built a fun video meeting app with 2D physics and proximity chat2022 · flat.social · ▲166
Hi HN! https://flat.social is a web video meeting app for organising fun online meetings & social events. Each participant can move around and talk with others in their proximity. Here is a quick demo if you wanna see it in action: https://youtu.be/Y2yH3twjrx4 I’ve been on it solo for around a year right now. Tech used is Next.js, Typescript, PIXI.js on the front-end and Node, Mediasoup, Socket.io and Matter.js (physics engine) on the backend. Feel free to jump in into the demo room (https://flat.social/f/Flat.Social-Demo) to say hi, I’ll be…
Realtime Multiplayer by Supabase2022 · ▲273Easily build real-time apps that enables user collaboration
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History: Last year I had to replace the tire on my bike, and I was surprised how difficult it was to find a suitable new tire. There were a lot of numbers written on the casing, so I googled what they meant. In the end I was successful, but I didn't want to do the same work again for the next bike after I've forgotten the details. So I wrote this website. Technically, the web page is kept very simple, no frameworks, no templates, no website builder. It uses HTML5, CSS and JavaScript, and it privides a responsive layout for mobile usage. I'm happy to receive feedback. If you have tried the…
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