Good links for FreeRTOS

https://aws.amazon.com/blogs/publicsector/creating-a-serverless-gps-monitoring-and-alerting-solution/

https://docs.aws.amazon.com/freertos/latest/userguide/getting_started_espressif.html

https://docs.espressif.com/projects/esp-idf/en/latest/esp32/hw-reference/esp32/get-started-devkitc.html

Not great but some explanation about AWS

https://github.com/aws/amazon-freertos