splash page before ui is deployed

Is there a way to create a "splash" screen while a global.R file is being executed? Unfortunately, the UI depends on the complete execution of the global.R file, so I cannot create a splash screen from within the ui/server.

I think that I'm asking shiny to do something it can't do...but maybe there is a way.

Still don't know if this is something that can be done, but I did figure out a workaround using the waiter package [waiter] and shoving the global information into the server call

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