# Zephyr RTOS - FLASH [TOC] ## References ### [Zephyr 101 - Device Settings Using nRF9160 Feather External Flash](https://youtu.be/m1DKYgaOuRY) {%youtube m1DKYgaOuRY %} ### [Common application configuration for boards](https://youtu.be/XQ0J9l-d38k) {%youtube XQ0J9l-d38k %}