The Signal Newsletter — Full Setup

Go to Supabase SQL Editor

Open supabase.com/dashboard → select your project → click "SQL Editor" in the left sidebar.

Run this SQL

Paste and execute:

-- Newsletter subscribers table
CREATE TABLE IF NOT EXISTS newsletter_subscribers (
  id UUID DEFAULT gen_random_uuid() PRIMARY KEY,
  email TEXT NOT NULL,
  source TEXT DEFAULT 'homepage',
  subscribed_at TIMESTAMPTZ DEFAULT now(),
  created_at TIMESTAMPTZ DEFAULT now()
);

-- Prevent duplicate emails
CREATE UNIQUE INDEX IF NOT EXISTS
  idx_newsletter_email ON newsletter_subscribers (email);

-- Enable Row Level Security
ALTER TABLE newsletter_subscribers ENABLE ROW LEVEL SECURITY;

-- Allow anonymous inserts (for website forms)
CREATE POLICY "Allow anonymous inserts"
  ON newsletter_subscribers FOR INSERT
  TO anon
  WITH CHECK (true);

-- Allow authenticated reads (for you to export)
CREATE POLICY "Allow authenticated reads"
  ON newsletter_subscribers FOR SELECT
  TO authenticated
  USING (true);

Add your Supabase credentials to the website

In both index.html and the-3-2-1.html, find and replace the placeholder values:

const SUPABASE_URL = 'YOUR_SUPABASE_URL';
const SUPABASE_ANON_KEY = 'YOUR_SUPABASE_ANON_KEY';

Replace with your actual values from Supabase → Settings → API:

const SUPABASE_URL = 'https://yourproject.supabase.co';
const SUPABASE_ANON_KEY = 'eyJhbGciOi...(your anon key)';

Create your Beehiiv account

Go to beehiiv.com → Sign up free → Name your publication "The Signal" → Set your sender name as "Sunny Binjola" and sender email as your business email.

Connect your custom domain (optional but recommended)

In Beehiiv Settings → Custom Domain → add newsletter.elevateaisystem.com. This means emails come from your domain (better deliverability) and the web version lives at your URL.

Get your Beehiiv embed form code

In Beehiiv → Grow → Subscribe Forms → Create a new form → Copy the form action URL. It looks like:

https://embeds.beehiiv.com/your-publication-id

Add Beehiiv to your website forms (dual submission)

Update the signup functions in index.html and the-3-2-1.html to submit to BOTH Supabase (your database) AND Beehiiv (for delivery). Here's the updated code for the homepage:

// Also subscribe via Beehiiv for delivery
const BEEHIIV_FORM = 'https://embeds.beehiiv.com/YOUR_PUBLICATION_ID';

fetch(BEEHIIV_FORM, {
  method: 'POST',
  headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
  body: new URLSearchParams({ email: email }),
  mode: 'no-cors'  // Beehiiv doesn't return CORS headers
}).catch(() => {});  // Silently handle — Supabase is the source of truth

Scan & Save (20 min)

Scan AI news — X, Hacker News, Ben's Bites, The Neuron, or any AI newsletter you follow. Save 5-8 articles that caught your eye. Don't write yet, just collect.

Draft (45 min)

Pick your 3 technologies, 2 ideas, 1 tool. Open Beehiiv, duplicate the template, fill in the blanks. Use Claude to help draft if needed — then edit for your voice.

Edit & Schedule (30 min)

Trim to under 800 words. Add links. Write the subject line (under 50 chars). Preview on mobile. Schedule for Tuesday 8am.

Engage (15 min)

It sends. Reply to responses — every reply is a relationship. People who reply to your newsletter become clients.