The problem is that a traditional BIOS is too slow and insufficiently customizable when designing for embedded systems. There’s no need to copy the standard BIOS when you can instead create your own system. Intel’s Boot Loader Development Kit allows developers to easily create flexible, versatile, as-fast-as-needed boot software, optimized for lightweight embedded systems. This paper walks through the steps involved in starting your own system and includes a specific exercise using Intel’s BLDK to modify an Unified Extensible Firmware Interface to create a new piece of custom firmware.