This is great. It seems like there was a unaddressed interest in this area. Since the category has been created I’d suggest that everyone share their projects on the new category:
https://discourse.ros.org/c/maritime
When you do so, include a summary of what you’re working on, goals and opportunities for collaboration. It would be helpful to also include a summary of what components you think would be useful for others to reuse, or have potential for reuse that others could try out.
It would also be useful to list pain points or components that you’d like to see from the community. If there’s something that many people want that can define a good jumping off point for a person or group looking for a project.
It’s also good to include links, pictures and videos to help capture people’s attention.