Go to cloudflare.com → sign up free → go to Workers & Pages → Create Worker.

In the Worker editor, delete the default code and paste the entire contents of poolpal-worker.js that came with this app. Click Save & Deploy.

Go to Workers & Pages → KV → Create namespace. Name it exactly POOLPAL. Then open your Worker → Settings → Bindings → Add KV namespace. Variable name: POOLPAL, select the namespace you just created.

After deploying, copy your Worker URL (e.g. poolpal-sync.yourname.workers.dev) and paste it here. No trailing slash.

In your Worker → Settings → Environment Variables, you can add POOLPAL_KEY with any secret value. Enter the same value here to protect your endpoint. Leave blank to skip.