Game of Certs - e01 - the elusive Parent Domain

What would I give for a Sunday free of assumptions!

Yet again, I've been humbled by relatively single tasks & lagunas of my memory.

sudo certbot certonly --agree-tos --email --manual * --preferred-challenges=dns

will work only for the wildcard domains, while:

sudo certbot certonly --agree-tos --email --manual -d domain -d * --preferred-challenges=dns

Will work for both the parent domain and the subdomains!