Really nice tool
It runs beautifully on my Apple Silicon M1 mac, but it is a pain to go through:
Lightroom export - jpeg - import into photos - cameramark the image - export out again. I'd really like to be able to tag any jpeg on my Mac without recourse to pjhotos, which I still find to be arcane.
Second feature request - could I add a short title of my own, say in the middle of the info, or even along the top?
But, lovely tool - any photographer should try this.