Re-initilizing instance of p5.js

Sure, totally get that the instance mode solves this – but what speaks for hacky, is not requiring the scope prefix… there’s gotta be a way. Essentially, should also be fine removing the global instance of p5.js and reloading it with the updated setup() + draw() in place. How might one go about doing that?? Was surprised I couldn’t find an init() function to the global kick things off on demand.