[racket] Using a splash screen with GRacket

Hi,

Is it possible to have a splash screen displayed while loading a GRacket
program?
Much like DrRacket's in fact.
Because for some projects, it can take several seconds to initialize
everything.
I tried to open up a frame at the very beginning of the code, but it only
shows up
after everything is loaded too.

How is DrRacket splash screen shown up so early, while DrRacket is loading?

Thanks,
Laurent
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