Investigation done. Launcher can be used to use one of the possible git repositories, but it's assembly/generation functionalities are limited.

<img width="769" alt="Screenshot 2019-09-06 at 10 24 14" src="https://user-images.githubusercontent.com/981838/64790605-3db67f80-d56e-11e9-9dac-747bb4886f89.png">

I think we need to have a separate repository for the Graphback example template that will have scripts linked to graphback and graphback config to allow the community to add generation process
(https://github.com/aerogear/graphback/issues/316)

We also initiated conversation with the Launcher team to see if they can add additional views where application can be customized:
<img width="728" alt="Screenshot 2019-09-06 at 10 06 49" src="https://user-images.githubusercontent.com/981838/64790756-853d0b80-d56e-11e9-9734-fa11caccd8a6.png">

We are going to wait and see how this will play out nicely.