Use something like owlbear.rodeo. It's free, fairly easy to use, and works on most all devices (laptops, tablets, and mobile). Run the DM version on your laptop, and have one of the players cast the map to a TV. Other players can use their own devices to move their tokens. Source: 6 months ago

Hello there! I'm a DM looking to host a one-shot for a group of people on Thursday, around 8 est (Can be earlier or later, depends on the availability). It'll be hosted over Discord, and we'll be using owlbear.rodeo to play. Source: 10 months ago

The way it breaks down specifically for me goes something like this: - fillable PDF form? Google sheets or VTT character sheets - collaborative notebook? Google docs or VTT note applet - world map? No idea for a moveable world map, but I use WonderDraft for regional/global cartography, and I quite like it. I upload the maps I make to the VTT of my choice. - whiteboard for battlemaps? Most VTTs have a built in... Source: 12 months ago

Roll20 isn't terribly performance intensive, what seems to be the problem when you've tried? Maybe try not using dynamic lighting if you're using maps that support it. There are a few similar options like owlbear.rodeo that are newer and might use more efficient webcode but I don't think you're going to be able to do much better then unless the DM wants to share a webcamera with the zoom session and just move... Source: about 1 year ago

Hello, I will be running session 0 for a upcoming short campaign this Thursday, and then we will meet every week after that at the same time for about 3 hours per session for about 5-7 weeks. We will be using discord for voice, and owlbear.rodeo for maps. Source: about 1 year ago

According to the 'Server' response header, Cowboy is the customer facing web server Https://github.com/ninenines/cowboy. Source: over 2 years ago

===> sh(git clone -n https://github.com/ninenines/cowboy .tmp_dir636214859401) Failed with return code 128 and the following output: Cloning into '.tmp_dir636214859401'... Fatal: unable to access 'https://github.com/ninenines/cowboy/': SSL certificate problem: unable to get local issuer certificate. Source: over 2 years ago

RE: HTTP/Web Sockets/TCP/UDP/etc. - check out NineNines libraries: Ranch (TCP Socket Acceptor), Cowboy (HTTP Server), Gun (HTTP client), and CowLib (General HTTP/SPDY library) are pretty good from what I hear. Source: over 2 years ago

Ranch is a pretty well optimized and battle hardened tcp acceptor. It powers the Cowboy/Phoenix server which scales to extreme level of concurrency and low latency. Cowboy uses ranch to pool and accept connections and I believe it uses {active,once}. https://github.com/ninenines/cowboy https://github.com/ninenines/ranch. - Source: Hacker News / over 2 years ago

I have a web application which uses cowboy and cachex every so often cachex errors, which means my server returns a 500. Source: over 2 years ago