In order to use this app for authentication, you have to use a browser that supports the U2F standard:

• Google Chrome
• Chromium
• Firefox
  • V56 or before: In combination with this extension
  • V57 or newer: After activation of security.webauth.u2f in about:config
• Opera

Once you enable U2F with Two Factor U2F, your aplications (for example your Android app or your GNOME app) will need to login using device passwords. To manage it, know more here

This app uses composer and npm to manage dependencies. Use

composer install
npm install
npm run build

or if you're using Krankerl

krankerl up

to set up a development version of this app.