Hello! If you want to do Hackgnar's BLE CTF but you've been struggling with flashing the ESP worry not! I have created a vagrant developer environment just for this. The environment can be found here: https://github.com/dnutiu/esp32-dev-env To use it you need to have Vagrant and VirtualBox installed. After you got those installed, clone the repo … Continue reading BLE CTF: How to flash the ESP32