$ datasette publish --help

 Usage: datasette publish [OPTIONS] PUBLISHER [FILES]...

  Publish specified SQLite database files to the internet along with a
  datasette API.

  Options for PUBLISHER:     * 'now' - You must have Zeit Now installed:
  https://zeit.co/now     * 'heroku' - You must have Heroku installed:
  https://cli.heroku.com/

  Example usage: datasette publish now my-database.db

Options:
  -n, --name TEXT           Application name to use when deploying to Now
                            (ignored for Heroku)
  -m, --metadata FILENAME   Path to JSON file containing metadata to publish
  --extra-options TEXT      Extra options to pass to datasette serve
  --force                   Pass --force option to now
  --branch TEXT             Install datasette from a GitHub branch e.g. master
  --token TEXT              Auth token to use for deploy (Now only)
  --template-dir DIRECTORY  Path to directory containing custom templates
  --plugins-dir DIRECTORY   Path to directory containing custom plugins
  --static STATIC MOUNT     mountpoint:path-to-directory for serving static
                            files
  --install TEXT            Additional packages (e.g. plugins) to install
  --spatialite              Enable SpatialLite extension
  --version-note TEXT       Additional note to show on /-/versions
  --title TEXT              Title for metadata
  --license TEXT            License label for metadata
  --license_url TEXT        License URL for metadata
  --source TEXT             Source label for metadata
  --source_url TEXT         Source URL for metadata
  --help                    Show this message and exit.