What APIs are ok to use before the app ready event?


Hello everyone, I wanted to know if I could invoke any of Electron’s functionalities before the app ready event. I tried to search the electron online documentation, but could’t find anything dedicating to this topic.

My main motivation is to implement something like a splash screen or a system dialog that shows up before the main window does; because app ready can take several seconds on my development machine to fire, and will maybe take more time on an everage user’s computer. Having a dialog or window immedietly show up will fill this gap. However, the system dialog API is only available after app ready. Is there anything I can do before that moment?

Thanks for your help.