Not so much of a help request, but an observation from me.
As I said in the other thread, I am currently learning to use RIOT, and I have three different platforms at my disposal (ESP32, ReMote-revb, Z1).
I got the Blinky program running for ESP32 and Z1. However, I failed with the ReMote-revb: None of the LEDs blinked, although there was no error in building, linking, and uploading. To make sure that the LEDs were not broken, I tried a similar program in Contiki, and I saw the LEDs blinking.
I found a solution for RIOT: After adding the line
as the first line of the main function, the LED0 started to blink. This line seems to be required. It is not required for Z1, however, and the ESP32 board does not offer a LED anyway.