rtklib_ros_bridge/rtklib_bridge/launch/rtklib_bridge.launch.xml

<?xml version="1.0" encoding="UTF-8"?>

<launch>
  <arg name="param_yaml" default="param.yaml"/>

  <node pkg="rtklib_bridge" name="rtklib_bridge" exec="rtklib_bridge" output="screen">
    <param from="$(find-pkg-share rtklib_bridge)/param/$(var param_yaml)"/>
  </node>

</launch>