If the instructions in these locations are incorrect or insufficient, we should fix them there.
As to building Synergia, it's not that simple, and we are currently cloning from https://bitbucket.org/robnagler/synergia2, because there are build issues that have not been fixed.
There are detailed instructions in this repo's README that should probably refer elsewhere.
To create a VM, they should refer to Sirepo's instructions: https://github.com/radiasoft/sirepo/wiki/Development
For logging into Jupyter, they should refer to: https://github.com/radiasoft/jupyter.radiasoft.org
If the instructions in these locations are incorrect or insufficient, we should fix them there.
As to building Synergia, it's not that simple, and we are currently cloning from https://bitbucket.org/robnagler/synergia2, because there are build issues that have not been fixed.