I took Federico Viticci’s Apple Frames 2.0 and made the following modifications:
1 I deleted all of the annotations in Comment form. They’re a testament to Federico’s diligence and huge contribution to personal automation with iOS… but they’re also just extra text.
2 I replaced the Find Photos Where action with Get Latest Photos with the Include Screenshots toggle ON and the retrieval limit set to just one.
3 I deleted the entire export preferences menu and replaced it with actions that save the result both to a specific Photos folder for frames and a corresponding iCloud Drive folder.
The resulting shortcut takes around 5–7 seconds to produce a single mocked up frame on my iPhone 12 Pro Max running iOS 15.3 beta after it’s triggered, and I think most of that is spent displaying the requisite notifications.
See my post coming soon to https://bilge.world if you’d like to know how I rigged it up with Back Tap.