How to prevent open last projects when IntelliJ IDEA starts?

Question

By default IntelliJ IDEA opens the last project when starting.

How to start IntelliJ without opening last project?

Answer 1

To manage this setting through the config file in IntelliJ IDEA 2019.1 Community Edition, head to ~/Library/Preferences/IdeaIC2019.1/options/ to use Patrick Wilkes' answer with the ide.general.xml edit.