A few weeks ago I built a niche little app idea dubbed MeetingBuddy. You choose a target app from a pre-defined list (or pick any app on your Mac) and a time interval and MeetingBuddy starts screenshotting that app's windows.
Each recording session goes into its own folder where all of the screenshots are organized by date. But! while this is all going on, MeetingBuddy is also OCR-ing any text found in the screenshots and storing that alongside each image in a sidecar file.
You end up with a folder of recordings for each session. Images and their corresponding text contents.
Wow. Very interesting app.