Building ROS 2 snaps with Colcon
The snapcraft CLI has supported building ROS1 snaps for a while via the catkin plugin. We supported the ROS2 betas via the ament plugin, but that was before Open Robotics had a ROS 2 package repository setup, which meant that the ament plugin built the ROS 2 underlay from source, and it was predictably dreadfully slow. However, the stable releases of ROS2 introduced a new build system called colcon, and also had their own package repositories setup....