Magicmirror is a software package for, well, making one of those nifty RaspberryPi magic mirrors that people seem to like building for their houses. Modular; turn on the bits you want, turn off the bits you don't.
Of course, the damned thing uses Electron.
eDEX-UI is a fullscreen desktop application resembling a sci-fi computer interface, heavily inspired from DEX-UI and the TRON Legacy movie effects. It runs the shell of your choice in a real terminal, and displays live information about your system. It was made to be used on large touchscreens but will work nicely on a regular desktop computer or perhaps a tablet PC or one of those funky 360° laptops with touchscreens.
Themeable. Uses Electron. Available as an AppImage.
A webapp and desktop vector drawing application that uses a grid of dots as a backdrop for sketching. Connect the dots and it makes the lines for you. Designed with logos and sprites in mind. Saves PNG and SVG files. Cross platform.
A personal knowledge repository for PDF and web content supporting offline-first caching, annotations of HTML as well as PDFs, and flashcards. If it's a document of some kind, it can manage it, including allowing annotations. Keeps track of where you left off in a particular document. Everything is stored locally; Git can be used to sync repos. Tries to be cross-platform.
Client side uses Electron, server side uses node.js.
Video editor that specializes in adding special effects. Built using Electron. Add lightning, muzzle flashes, light sabers, and more.