Supabase

Supabase is the default subscriber store — production-ready with full CRUD and email logging.

Setup

export SUBSCRIBER_STORE=supabase  # or just don't set it — this is the default

Configuration

Variable	Description
SUPABASE_URL	Your Supabase project URL (https://[project-id].supabase.co)
SUPABASE_SERVICE_KEY	Supabase service role key

Database schema

Cryyer expects a beta_testers table with the following columns:

Column	Type	Description
email	text	Subscriber email address
name	text	Display name (optional)
product	text	Product ID
unsubscribed_at	timestamp	Set to exclude from sends

Create the table

create table beta_testers (
  id uuid default gen_random_uuid() primary key,
  email text not null,
  name text,
  product text not null,
  unsubscribed_at timestamp with time zone,
  created_at timestamp with time zone default now()
);

create index idx_beta_testers_product on beta_testers (product);
create unique index idx_beta_testers_email_product on beta_testers (email, product);

How it works

• getSubscribers queries active subscribers (where unsubscribed_at is null) filtered by product ID.
• addSubscriber inserts a new row.
• removeSubscriber sets unsubscribed_at to the current timestamp (soft delete).
• recordEmailSent logs the send event.

When using audiences, the product column stores the compound key (e.g. my-app:beta).