DEV_SECRET_KEY=replace-with-a-unique-secret
TEXTBEE_API_KEY=replace-with-your-textbee-api-key
TEXTBEE_DEVICE_ID=
RECIPIENT_SELF=+12015550123
RECIPIENT_1=+12015550124
RECIPIENT_2=+12015550125
CODE1_HMAC_SECRET=replace-with-a-unique-random-secret