How can I get the Appsheet url for an image?

[dalebyers]

I am using an external app to annotate appsheet images in certain cases.  I have this working with a drive look up to load the image, but it is slow.  If I can get the appsheet image URL that appsheet uses to display the original image, vs the simple file path stored in the data source, it makes the loading of the image almost instant.  I can trick the app into showing this to me if I set a virtual column equal to the og image col and set the type to text, then instead of displaying the image, it shows the appsheet URL, which is how I have tested its speed.  But I do not know how to extract it as a value in an appsheet field.  Anyone know of a way to extract the appsheet url from appsheet through an expression?  I am so close to making this work flawlessly.