Electron IDE for Arduino
An open source Arduino IDE built with Node.js and a web interface, designed to make boards, libraries, and toolchains easier to manage.
Before Electron was a toolkit for web-based local apps, I created my own Electron, a new IDE for Arduino users that would be more friendly towards newbies. It provided an easy way to manage your devices, compilers, and libraries.
I stopped development before a 1.0 release. In my 2015 retrospective, I explained that as the official Arduino tools became better my project no longer provided any advantages. The source remains available on GitHub, though probably doesn't compile anymore.