Why and How I Replaced RVM with RBENV

My morning started out like most people's, as I sat down at my computer while eating a bacon-egg-and-cheese on an everything bagel. And then, like everyone's morning it quickly made a hard right turn in a different direction.On the lookout for an fun open-source project to contribute to, I found myself on the Dev.to github repo. When looking into their documentation, I find that they're using something called..."Rbenv". Huh?!.