---
title: open-slide preview
description: Serve the production build locally for sanity-checking.
---

```npm
open-slide preview
# or
npm run preview
```

Serves `dist/` on a local port so you can rehearse the deck the way it will
ship — same scaling, same routing, no dev-only chrome.

Run `open-slide build` first; `preview` doesn't rebuild on its own.

## Flags

| Flag                  | Default        | Description                                              |
| --------------------- | -------------- | -------------------------------------------------------- |
| `-p, --port <port>`   | from config    | Override the listening port.                             |
| `--host [host]`       | localhost only | Expose the preview on the network. Optional host pin.   |
| `--open`              | off            | Open the browser on start.                               |