Setting up Auto Updates in your app with Electron Forge is mostly the same process as described in the Electron docs. Forge enhances your workflow by publishing your app to the right place for you. There are two main ways you can do auto updates.
This setup is going to be around 2 lines of code and a few lines of configuration, by far the easiest way to set up auto updates if you're an open source app.
Each update server will have their own configuration for your actual app, but publishing should be done from Forge for most of them: