Something
public text v1 · immutableTEXT=$(xxd -ps -u <<< $(rev <<< $1) | sed 's/0A$//')
echo "16i[q]sa[ln0=aln100%Pln100/snlbx]sbA0D${TEXT}snlbxq"
TEXT=$(xxd -ps -u <<< $(rev <<< $1) | sed 's/0A$//')
echo "16i[q]sa[ln0=aln100%Pln100/snlbx]sbA0D${TEXT}snlbxq"