Adding the Kanban Board web part to a SharePoint modern page
Once the Virto Kanban Board web part is installed, you can add it to a SharePoint site page within your site collection.
To create a modern page with a Virto Kanban board, click “New” and choose “Site Page.”

Next, give your site page a name, click "+", find “Virto Kanban Board” and click its icon. If the web part is not in the list, add the app “Virto Kanban Board” to the site first (Site contents → New → App); see Installing the Virto Kanban Board SPFx web part.

In the upper right corner, click “Publish.”

Now you can create your first board!

Script libraries
The “Scripts” section of the web part property pane has options for jQuery, jQuery UI, jQuery Migrate and AngularJS. They are selected by default and load the library versions used by the board. Clear an option only when the page already loads the same library, for example to avoid conflicts with another web part.