Housing can be either attached to an existing settlement to become part of it (and benefit from all the already provided services such as food). Or it can be placed independently to establishitself as a new settlement, in that case you need to attach it with service modules.
Welcome to Curland, the slender and elongated island bursting with space and natural riches. Its curly shape adds a delightful challenge to constructing sizable factories – prepare to make a robust logistics network capable of traversing the lengthy distances along its elegant curl. For the adventurous, consider connecting the ends to establish a circular logistics loop, turning the island's weakness into a strategic advantage. Rumors of a substantial crude oil deposit circulate, but it has yet to be found.
The number of workers available. To get more workers increase your population. You can do so by building a beacon, explore the world map or apply edicts.