ref: a9513b7532d1e2fb59159386dd6e4ea28e24bc87
dir: /sys/src/boot/reform/mkfile/
FILES=flash.bin boot.scr all:V: $FILES clean:V: rm -f $FILES flash.bin: hget -o flash.bin 'https://source.mnt.re/reform/reform-boundary-uboot/-/jobs/artifacts/stable/raw/flash.bin?job=build' boot.scr: boot.txt aux/txt2uimage -o $target $prereq