DoubleYouEl

def decode(msg):
    text = ""
    for i in range(0, len(msg), 2):
        text += unrot(msg[i: i + 2], i // 2)                    # add position as extra parameter
    return text


def unrot(pair, pos, key=ord('x')):
    if pos % 2 == 0:                                            # "even" position => 2nd char is offset
        pair = pair[1] + pair[0]                                # swap letters in pair

radiofrequency

#place in /etc/letsencrypt/renewal-hooks/post

export AWS_ACCESS_KEY_ID=XXX
export AWS_SECRET_ACCESS_KEY=XXX
#certs must be in us-east-1 to use with cloudfront
export AWS_DEFAULT_REGION=us-east-1

#run without --certificate-arn first time then specify arn for updates
aws acm import-certificate --certificate file:///etc/letsencrypt/live/site.com/cert.pem --private-key file:///etc/letsencrypt/live/site.com/privkey.pem --certificate-chain file:///etc/letsencrypt/live/site.com/chain.pem  --certificate-arn specifyarnforupdate