Display an image attachment on homepage

Hello dear QBers!

Been banging my head against this for a bit...

I have an identity badge app -- where each user has an image of themselves in their record.

On the homepage of that app, I'd like to show them their picture, if they have one.

Wrinkle: I don't want to use the single-field report approach ... it's ugly, and doesn't translate well to mobile.

I've been trying to write it as a api_doquery using the current user as the filter.. but not getting anywhere

Thanks as always!

M