Storing Input using R Shiny Graphical Object

I was wanting to run an experiment potentially using R Shiny, but I am unsure if it would feasible. I am essentially wanting to display an image to a user and have some sort of visual cue appear on the image that would last for various lengths of time and with various frequencies. If the user sees the cue, I want them to be able to click a button. If they click it within a specified time frame, I want to record it as a hit while if they do not click it within that time frame, it would be recorded as a miss. I would then have access to the recorded hits and misses, of course. Is something of that level possible in R Shiny?

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