Dirilect3 Installation Step by Step

[fuijiy via Digitalmars-d-learn]

Hello guys,

I'm trying to install Derelict3. I read a lot of thing and I lost 
myself between this huge set of information. What I must do ? 
First, I try to build Derelict3 (github version) manually but I 
failed. So I tried with dub. But I don't understand how to use 
dub.
My OS is Ubuntu.
Could you help me ? Could you explain me step by step ? Advice me

I know it's a noob behavior, I'm sorry about that.

Thanks