The orang laut (literally sea people in the Malay language) are nomadic tribes who live all around the east coast of Borneo, straddling the Philippines, Malaysia and Indonesia.
Some fare better than others. Some have gone ashore and assimilated into land-life. But this group that I met have no nationality, thus for better or worse, have to live at sea their whole lives, either on boats, or on stilt houses around small islands. No running water, no electricity.