Secret Key Base
The one required secret, and the two ways to set it.
Docs
Every environment variable and credential the kit reads, and what's optional.
The one required secret, and the two ways to set it.
Setting up transactional email, and the SPF/DKIM/DMARC deliverability warning.
OAuth credentials for both providers.
Turnstile bot check and the general shape of everything else that's optional.