One more thing, just build-all.sh
does not work for me, it has to be ./build-all.sh with that dot and slash, this will build all of the hex files.
make also builds all hex files.
./build-all.sh sc21 works as usual, builds one hex file for SC21 Pro in my case.
Note: I have learned formatting the post,
from this thread “New BLF forum engine FAQs“ , thanks to @sb56637.
Edit: edited countless times for clarity, I made tons of typos when formatting 