sudo npm install --location=global snarkjs@latest

snarkjs zkey contribute charon_ceremony2_$x.zkey charon_ceremony2_$y.zkey --name="MyName" -v -e="Random entropy"
snarkjs zkey contribute charon_ceremony16_$x.zkey charon_ceremony16_$y.zkey --name="MyName" -v -e="Another random entropy"

    - change $x to the correct number of the current file. 
    - change $y to the  $x + 1
    - change the --name field ("MyName").  Note that this will be public so use some identifier (name, nickname, fun saying, etc.)
    - change the entropy -e field("Random entropy" and "Another random entropy).  These are the secret.  Make them long and make them something no one will ever guess and you'll never reveal.  Ideally like a dark secret of yours mixed with random letters/numbers you won't remember.  This is private and hashed so no one will ever know!

    - move the old zkey ($x file) to the oldzKeys folder
    - make a PR with the new zKey