How to create additional user accounts, either manually or with container linux configs.
How to configure date, timezone and time synchronization.
How DNS resolution works and how to setup local DNS caching.
How to configure kernel modules, sysctl parameters, and other common Flatcar settings.
How to setup static networking, turn on/off ipv4/ipv6, and debugging tips.
How to setup etcd to use client certificates.
How to choose the CPU governor to use.