impress.js Viewer with console etc. It is built using electron and obiously impress.js library. This app does not help you create impress.js presentations. It only helps with playing them. It can accept html and md files (markpress version)
I use electron-builder and steps described electron.rocks
Because of some binary dependencies, you have to run this after
npm install --save-dev electron-rebuild ./node_modules/.bin/electron-rebuild