# Whatnot auto-print for Mac (Rollo)

## One-time install (no Terminal)

1. Add your Rollo in **System Settings → Printers & Scanners** (Rollo driver from rollo.com).
2. Unzip the download, then double-click **`Install Whatnot Printing.app`**.
   - The first time, macOS asks *"Are you sure you want to open it?"* — click **Open**.
   - Follow the wizard → **Continue** (~30 seconds). It auto-detects your thermal/Rollo printer when possible.
3. In Chrome: reload the extension → turn on **Auto-print labels** → **Test print**.

The helper runs in the background and starts automatically when you log in. Printer name and 2×1 label size are configured automatically — you do not need to type the printer name in extension Settings.

## Daily use

Stream on Whatnot. Labels print when sales are captured. Nothing to start.

## Remove

Double-click **`Uninstall Whatnot Printing.app`**.

## Folder contents

| File | Purpose |
|------|---------|
| `Install Whatnot Printing.app` | **Install / setup wizard** (use this) |
| `Uninstall Whatnot Printing.app` | Remove background helper |

The background print service is fully self-contained — it does **not** require Python or Command Line Tools to be installed. It runs on any Mac (macOS 11+, Apple Silicon or Intel).

## macOS Security blocked the app?

The app is signed and notarized by Apple, so you should only see the normal *"Are you sure you want to open it?"* prompt — click **Open**.

If it is still blocked: right-click **`Install Whatnot Printing.app`** → **Open** → **Open** (first time only), or go to **System Settings → Privacy & Security** and click **Open Anyway**.

## Wrong printer?

Run **`Install Whatnot Printing.app`** again and choose a different printer in the wizard.
