The http-nu website. Serves the splash page and documentation.
```bash
http-nu --datastar :3001 -w www/serve.nu
```
Open <http://localhost:3001>.
The `-w` flag watches for file changes and reloads automatically.
`--datastar` serves the embedded Datastar JS bundle for the interactive demos.
All paths are resolved relative to the script via `path self`, so you can
run from any directory.