locker98_tools_ws/locker98_tools_bringup/launch/slam.launch.xml

<launch>
    <arg name="use_sim_time" default="False" />
    
    <include file="$(find-pkg-share nav2_bringup)/launch/navigation_launch.py">
        <arg name="use_sim_time" value="$(var use_sim_time)"/>
    </include>
  
    <include file="$(find-pkg-share slam_toolbox)/launch/online_async_launch.py">
        <arg name="use_sim_time" value="$(var use_sim_time)"/>
    </include>
    
    <node pkg="rviz2" exec="rviz2" output="screen">
        <param name="config" value="$(find-pkg-share locker98_tools_bringup)/config/rviz/nav2_config.rviz" />
    </node>
</launch>