Animal iconography and pottery shards suggest a north African origin for the original inhabitants.
Note the ability that they had to make pottery. If is fired articles, you have to understand clay-working technology, the ability to construct a kiln which can sustain the temperature of firing the articles without falling apart; the kind of fuel to keep it going at a high enough temperature; possibly forming the clay on a potter’s wheel, etc. Are these “hunter-gatherers” also artisans? (A lot of assumptions about the people of the time.)