ENV=<development|production>

CACHE=<enable|disable>

CSRF_SECRET_KEY=<generated key with Python, see README>
SESSION_SECRET_KEY=<generated key with Python, see README>

STRIPE_SECRET_KEY=<Stripe API key>
STRIPE_ENDPOINT_SECRET=<Stripe webhook secret> 

NOWPAYMENTS_API_KEY=<NOWPayments API key>
NOWPAYMENTS_SANDBOX_IPN=<NOWPayments IPN>
NOWPAYMENTS_SANDBOX_API_KEY=<NOWPayments Sandbox API key>
NOWPAYMENTS_SANDBOX_IPN=<NOWPayments Sandbox IPN>

MAIL_USERNAME=<email address>
MAIL_PASSWORD=<email password>
MAIL_FROM=<email sender address>
MAIL_FROM_NAME=<email sender name>
MAIL_PORT=<email port>
MAIL_SERVER=<email server>
MAIL_STARTTLS=<True|False>
MAIL_SSL_TLS=<True|False>
MAIL_USE_CREDENTIALS=<True|False>
MAIL_VALIDATE_CERTS=<True|False>

CPU_CORE=<set computer's number of CPU cores, on Linux run `nproc --all`>