This will work with the housings. But I think that you can then pull out the cables for circuit and brake, but by the squeezing of the cables on the brakes or the shifting you will no longer be able to bring them back into the housing.

I put the front brake on the left side of the handlebar and did not get any problems with it. In general, I felt a slight restoring force on the handlebars after installing the cables. But I think that this is normal. When driving this is not particularly noticeable.

Thanks for the answers. I meant the front one. I know until now only those who have this adjuster in the line.
If it has newer with an adjuster on the derailleur itself then my question is settled.

I have received the Information the frame will be shipped Tuesday next Week. 

Thanks for the replies, I think I will give mechanical braking a chance.
Now it is still to determine the right frame size for me.

Hello together,
I have been reading the forum for some time now.
I have now decided to build myself a new road bike.
I have chosen the Velobuild R 168 as my frame. Now I'm planning the rest of the components.
I would also like to use Chinese components. There are plenty of gears etc. to buy on Aliexpress. What I'm missing, however, is a way to mount hydraulic disc brakes.
The only disc brakes I've been able to find so far are those that are operated by cable.
Are there really no purely hydraulic ones, or have I just not found them yet?
It would be nice if you could give me some help here.
Regards
Christian