Resourcing

The efficiency of a settlement depends on several resourcing choices.

Overview
How one wants to run their settlement is entirely up to them. However, settlers do have certain expectations of comfort and safety. The condition of a settlement is determined by the following factors:
 * People
 * Food
 * Water
 * Power
 * Defense
 * Happiness

Settlers assigned to a scavenging station will passively generate junk while you are on your travels. Likewise, unassigned settlers will also gather junk/scrap, but at a slower rate. There appears to be a cap after the first few scavenging stations, so building a ton of them will not be beneficial.