I am trying to create a pkg file of my electron application using electron-installer-dmg and electron-packager.
Digging into the documentation of these two (and few other tools), I couldn't find a configuration or solution to add a step in the install process.
To be more clear, when I click on the pkg file, I would like to have a user agreement step.
For dmg, you can simply drop a license file in the build folder. Look here for more details.
For pkg, unfortunately, it is not developed yet. Here is the related issue.