the blake2b and blake2s algos are very similar.
blake 2s uses the same calculation method only the output is up to 32 instead of 64 digits long. i cannot imagine why blake 2s shouldnt run on the A3 smoothly. as blake 2s is actually mor simple and a downgrade of balke 2b. it looks just like a simple software update matter.
we just need a glorious nerd, to get us a simple blake 2s implemenation.
who wants to be that hero ?

please ! please !
do it !
do it now !
....and we will donate you gratefully ....