Production
In Sweet Transit every production chain serves a purpose. In general, there are two types of goods produced. First, there are building materials that are used for expansion and upkeep. Others are for your population such as food, clothes, books and so on. Some are used to bring more people, some to raise taxes and some to keep happiness levels high. To produce these goods you will need production buildings.
Factories and farms are some of those buildings. Provide some workers with input goods and your output goods will be made. Just do not forget to swap tired workers with rested ones. A tired workforce does not work efficiently and can cause some problems. All production buildings that are not village or city based can also be expanded.
The simplest and most common expansion is storage. It is not required to have, but it is great to stockpile your goods in between arriving trains. A production building with full storage will not produce any goods and your workforce will be wasted.
Sometimes expansion is necessary to produce any goods. For example, cotton cannot be produced without cotton fields. Expansions such as fields influence production speed and how many workers will be needed. Later expansion buildings get more advanced with more requirements and rules.
As a bonus here are some smoke updates. From time to time I need to come back and finish some features. Smoke before served its purpose, but it lacked in quality and polish.
By now most of the early game should be clear. Write a comment if you want to hear about something specific!