If you own a Nexus phone that is scheduled to receive the update to Android 7.0 Nougat, the time is now. Google has posted factory images and the OTA .zip files for those unwilling to wait for an over-the-air update to pop-up.
As of right now, we have Android 7.0 Nougat files for the Pixel C (NRD90M), Nexus 9 WiFi (NRD90M), and Nexus Player (NRD90M).
You can grab each image or OTA file at the links below. For instructions on how to flash a factory image, here you go. For instructions on how to flash an OTA .zip file, here you go.