Hei ExpandedFonts,
thanks for the super quick reply.
This sounds pretty much how I am doing (try to do it) at the moment.
I have a git (master) on a development server inside my wordpress root.
Until now I dont have the production server but when I have it, I will push the development (staging) page live, after merging everything together.
It just feels unhandy to do it that way, so I am searching for a better way to solve it.
One problem is, that I am not sure what data is wordpress stores in database and what is in files...
Your plugin will make the life easier, without doubt, so I will try to implement and use it.
Thank you again for your answers.
Cheers,
Felix