This is unofficial flutter plugin, a simple wrapper around native iOS and Android libraries provided by Google. Check overview here.
I think it's the most underrated technology Google has made. It allows you to transfer small payloads between nearby devices without paring. Run example to understand, what I'm talking about.
Coming soon =)
This plugin is licensed under WTFPL, however it depends on Google's libraries, which aren't covered by this license. It covers only source code in this repository.
/* This program is free software. It comes without any warranty, to
* the extent permitted by applicable law. You can redistribute it
* and/or modify it under the terms of the Do What The Fuck You Want
* To Public License, Version 2, as published by Sam Hocevar. See
* http://www.wtfpl.net/ for more details. */