OpenMat
Open your world, talk & meetup with nearby people
OpenMat launched on December 21, 2022 with 78 votes, #655 of 3,688 launches that month and more than 75% of that year's launches. The site was not reachable when checked in September 2026.
What it does
Real people make life meaningful. So open your world — talk and meetup with those nearby.
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I built a fun video meeting app with 2D physics and proximity chat2022 · flat.social · ▲166Hi 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…



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