Environment variables

On the server

Set these in the host's environment for the deployed site. On Cloudflare Workers, /api/contact reads the Worker's own bindings (variables and secrets) first, then the process environment, then the build's import.meta.env.

Variable	What it does
RESEND_API_KEY	the Resend API key for the built-in /api/contact
CONTACT_FROM	the sender address, on a domain verified in Resend
CONTACT_TO	the recipient; unset, the email in the contact settings is used
TURNSTILE_SECRET_KEY	the Cloudflare Turnstile secret key; when set, /api/contact verifies the form's cf-turnstile-response and refuses a message that fails
STOMME_RL	Cloudflare Workers only, a KV namespace binding rather than a variable; when bound, /api/contact counts messages per visitor IP and host, and after the fifth answers 429 until 10 minutes have passed since the last accepted one

At build time

Variable	What it does
STOMME_TARGET	netlify (default), cloudflare, vercel, node or static; the build:* scripts set it
PUBLIC_TURNSTILE_SITE_KEY	a Cloudflare Turnstile site key; the contact form renders the widget and sends cf-turnstile-response
GITHUB_TOKEN	a token for reading a private docs repository, or for GitHub's higher rate limit
STOMME_DOCS_DIR	a local docs folder to build the docs section from, as one version
STOMME_SLOTS_DIR	an outside directory of slots, blocks, collections, CMS editors and routes
STOMME_LOOKBOOK	any value builds /lookbook into a production build

For the CMS generator

Variable	What it does
STOMME_SCHEMA	the catalog file, default src/blocks/schema.ts; only the generator reads it, the build always uses src/blocks/schema.ts
STOMME_CONFIG	the CMS config file, default public/admin/config.yml
STOMME_SVELTIA_SRC	the URL of the Sveltia CMS script that /admin loads

The generator also reads STOMME_SLOTS_DIR for an outside directory's block-catalog.mjs, CMS editors and previews.