https://github.com/Unity-Technologies/Robotics-Nav2-SLAM-Example/blob/main/readmes/dev_env_setup.md
$ git clone <https://github.com/Unity-Technologies/Robotics-Nav2-SLAM-Example.git>
Robotics-Nav2-SLAM-Example-main/Nav2SLAMExampleProject 를 Unity project로 열기
$ cd ~/colcon_ws/src
$ git clone <https://github.com/Unity-Technologies/ROS-TCP-Endpoint.git>
$ cd ROS-TCP-Endpoint
$ git checkout main-ros2
$ cd ~/colcon_ws
$ colcon build
https://github.com/Unity-Technologies/Robotics-Nav2-SLAM-Example/blob/main/readmes/unity_project.md
Assuming you have already configured your dev environment, you can open the Nav2SLAMExampleProject either by adding the directory to your Unity Hub via the Add button, or opening it directly from an open Editor.
On Linux, you may encounter a bug in the Hub where, if you have no Projects in your list already, Add will not work properly. If you see this, create a New, empty project first, then try and Add Nav2SLAMExampleProject again.
Find the example scene, SimpleWarehouseScene, in the project browser, located in the bottom left of the Editor by default, and open it by double-clicking.
You should see something like this open in your Editor window: