DietPi install on existing Raspbian

Is it possible to install the DietPi functionality on existing Raspbian?
I see the root has a DietPi folder. Can I copy that to existing root and use it?

I also want to say I just found DietPi and it’s awesome!
Thanks for sharing your hard work.

DietPi uses Raspbian lite official image, then prepped for DietPi, with further optimizations and reductions in rootfs size.

You can prep any Debian image for DietPi by following:

Although, you’ll most likely end up with the DietPi RPi image we currently have (due to apt removals).