This flake.nix will allow you to get a development environment for the custom
ROS packages defined in the repo.
nix develop github:genkiinstruments/workshop-2024?dir=ros2-nix-example
or if you have the repo cloned locally, cd ros2-nix-example and nix develop
Once inside of the devshell, you should be able to ros2 launch random_bringup test_pub_sub_launch.py