Compile from PKGBUILD?

So I'm such a newb that I dont know what questions I should ask. Currently I'm using a pinebook pro with manjaro to learn on. It's arm based and I would like to try to install a Deepin DE. So I've been told that if I take the PKGBUILD from the x86_64 version and compile those I should be fine. So how exactly is that done correctly? What should I make sure to do, or not do? And once compiled do I need to use different terminal commands for installation and or removal? Thank you.