Ethersync enables #realtime collaborative editing of #local text files. You can use it for pair programming or note-taking, for example. It's the missing real-time complement to Git!
https://github.com/ethersync/ethersync
3/x

Gif showing two editors side-by-side. Editing the same file in realtime.
Gif showing two editors side-by-side. Editing the same file in realtime.