The BabbleSim project consists of many components, most of them optional and each in its own separate git repository.

You can fetch them in several ways, check the fetching instructions

Using Zephyr’s west tool you can do

mkdir ~/bsim/ && cd ~/bsim/
west init -m git@github.com:BabbleSim/bsim_west.git bsim
cd bsim
west update

This repository contains the following west manifest files:

• west.yml: Contains the minimal set of BabbleSim components required for Zephyr BLE development and testing
• developer_set.yaml: Targets developers who want a typical set of components used for development and test of BLE/802.15.4 devices.
  You can use it with west config manifest.file developer_set.yaml ; west update