Where a build places the firmware and each slot on a board with MCU variant mcu and size board_size.
mcu
board_size
slot_sizes is every slot's size in config order, plugins first. The slots are placed with the build's own code.
slot_sizes
Where a build places the firmware and each slot on a board with MCU variant
mcuand sizeboard_size.slot_sizesis every slot's size in config order, plugins first. The slots are placed with the build's own code.