The Orko project demo is based on the Trusted Reference Stack. To stabilize development during the integration we have created a branch that pins down the development environment.
Hence, one has to use the following command to clone the repositories:
repo init -u https://gitlab.com/Linaro/trusted-reference-stack/trs-manifest.git -m default.xml -b orko-demo
One can run the same command on an existing TRS checkout to switch to the development branch.
Building is then identical to TRS itself. A detailed description can be found at: https://trs.readthedocs.io/en/latest/user_guide/prerequisites.html.