Updating one of the nodes in my custom IoT mesh

Video showing my process for updating a node in my IoT mesh. The code for this project is available at https://github.com/GuillaumeRossolini/griotte The video shows Arduino IDE waiting for the USB to mount, then I simply click the "upload" button and I wait for the process to finish. The entire process lasts about 30 seconds, to be repeated for each node. It may take a few minutes if I change anything in the code, but this delay is only for the first node, since they all share the same code.