This has undoubtedly been asked before but I can't track down the exact info I'm looking for....
Question: Is it possible to publish custom web apps and widgets created in the Developer edition of Web AppBuilder to ArcGIS Online?
The AGOL Add Item > An application provides options for Web Mapping and Application that seem to imply that AGOL supports this, but the user interface for those tools does not allow for uploading files. What's more the docs seem to indicate that many of the items available to publish to AGOL and shared are available for download only.
Exactly what can be published to AGOL in terms of custom code, if anything? Web apps and/or widgets built with WAB?