Rails Crud Is a Library, Not a Framework

When I'm using VIT it's really transparent. The bundlings that it uses for the phone and takes maybe a few seconds, if you notice a few milliseconds but it's pretty much it. So they actually don't anymore. What about SAS? The SAS still a thing? Because that was the thing that seemed like it took the most time. It seems that everybody is kind of left SAS for tailwind or something. That's where everybody seems to be going but it's not really my area of expertise i have to say.