Sweet thanks! Will mess around with NG as well.
Although my question is sort of moot since smash is out of core pcb's.
EDIT: dammit sorry for the multiple posts. I kept getting server unavailable / Nginx Error.
or alternatively is it possible to build a MIDIbox KB with an MBHP_CORE_STM32F4 for the core? The docs make it sound like its only with a CORE_LPC17
so confused...