The global.R file What does it do? How do you do it? Final thought The global.R file Anybody who has ever created a shiny app or a shinydashboard has probably had the problem of the ui.R and server.R or the app.R files becoming very complex and crowded. Sure, if you’re app is very simple, you don’t have any side-bar with several tabs, etc. then you probably don’t know what I’m talking about, but bear with me, this might still be interesting further down the road on your journey to becoming a Shiny master.