Achilles Instant Dev Kit by ReFLEX CES

Is anyone out there using the Achilles Instant Dev Kit for any development? I’m working bringing up an Achilles but am having a hard time figuring out a good work flow for bootstrapping the board (it has on-board eMMC flash, not SD card). The “getting started” docs suggest that they use the FPGA-boot method to load u-boot and go from there, but I was wondering if there is another way of bootstrapping these Arria 10 parts?