Audio Share can share Windows/Linux computer's audio to Android phone over network, so your phone becomes the speaker of computer. (You needn't buy a new speaker😄.)

Generic robotic controllers to accompany ros_control

RosTeamWorkspace is a framework for boosting collaboration in teams when developing software for robots using Robot Operating System (ROS1 and ROS2).

Generic robotic controllers to accompany ros2_control

Generic and simple controls framework for ROS 2