To configure the sidebar button you need to specify the url, define the button's label and write a few lines to explain the content editor what the button does as a hint (optional).
Install all the project dependencies with:
Add this plugin in development mode to one of your DatoCMS project with:
Start the local development server with:
The plugin will be served from https://datocms-plugin-sidebar-button.localtunnel.me/. Insert this URL as the plugin Entry point URL.