This hackathon is about developing GNU/Linux distributions for your embedded and IoT projects using Yocto Project and OpenEmbedded distribution building instruments. Yocto has been established as de facto standard for embedded systems and wearable devices. Information will be provided on how to build your own device specificly with Linux distribution and software applications. For the practical demo you will use Raspberry Pi and open source hardware circuit boards OLinuXino from the Bulgarian manufacturer Olimex.