Deploy crater invoice on digital ocean ( docker )

I'm looking for someone who can help me setup
the crater invoice application on a domain
( https://craterapp.com/ )

It's through digital ocean ( docker )
Here is the guide:
https://docs.craterapp.com/installation.html#digital-ocean-docker

It should be self explanatory
but I've never done it before and I don't really
have time right now to figure it out myself

I would love to have a video guide to follow it step by step