CLOUDFLARE_DNS_ENABLED

A sample .env file on Github includes several Cloudflare parameters.

Anyone know what these parameters do?
CLOUDFLARE_DNS_ENABLED=false
CLOUDFLARE_API_KEY=
CLOUDFLARE_EMAIL=
CLOUDFLARE_TARGET_IP_ADDRESS=
CLOUDFLARE_ZONE_IDS={}

Safe to ignore these. These are used in the hosted version for clients who want to use a custom domain.