Automatically pair a Wii Remote to macOS using blueutil command-line tool (Intel-only? fails on Apple silicon)

pair-wii-remote-macos.sh

#!/usr/bin/env bash

# requirements: blueutil

echo "Hold both 1+2 buttons on Wii Remote and wait for 30 seconds"

# get MAC Address of Wii Remote
MAC=`$(which blueutil) --inquiry 5 2>&1 | grep 'address' | awk '{print substr($2,1,17)}'`
(killall -m 'blueutil*' 2>&1) >/dev/null
echo "MAC: $MAC"

# prepare HEX
HEX=`echo $MAC | tr -d '-'`

# PIN is MAC Address HEX pairs in reverse order
PIN="\x${HEX:10:2}\x${HEX:8:2}\x${HEX:6:2}\x${HEX:4:2}\x${HEX:2:2}\x${HEX:0:2}"

# try to PAIR with PIN
echo "ATTEMPTING PAIR"
echo "$PIN" | $(which blueutil) --pair $MAC >/dev/null 2>&1

# fail?
if [ $? -ne 0 ]; then
    echo "PAIR FAILED"
else
# now we can CONNECT
    echo "ATTEMPTING CONNECT"
    $(which blueutil) --connect $MAC >/dev/null 2>&1
fi

I by no means know shell script well but i tried to hardcode in the MAC address here because blueutil was acting weirdly. Anyways I get the error Failed to pair "d8-6b-f7-db-a2-5e" with error 0x1f (Unspecified Error)

Here is the code:
#!/usr/bin/env bash

MAC="d8-6b-f7-db-a2-5e"

(killall -m 'blueutil*' 2>&1) >/dev/null
echo "MAC: $MAC

PIN="\xe5\x2a\xbd\x7f\xb6\x8d"

echo "ATTEMPTING PAIR"
echo -n -e "$PIN" | $(which blueutil) --pair $MAC

if [ $? -ne 0 ]; then
echo "PAIR FAILED"
else
echo "ATTEMPTING CONNECT"
$(which blueutil) --connect $MAC
fi