Clone this repository into a folder called "vagrant-definition""

Then clone your main project code repositories into a folder called "code"

You're looking to create a structure like

|-- vagrant-definition
|   |
|   +-- Vagrantfile
|
-- code
   |-- erp-mainline // main erp codebase
   |    |
   |    +-- ... code
   |
   |-- erp-config // erp configuration
   |    |
   |    +-- ... code
   |
   |-- restoredb-mainline // database import scripts
   |
   |-- fums (not yet included in the vagrant file)
   |
   |-- booking-engine (not yet included in the vagrant file)

You can view the mounts in the vagrant file to see where you will be able to access them in the vm