My librarian CLI is all about storing research in a way that is searchable with code samples, and proof that it works.

The last thing that it verified was this Keynote overlay. It created a window to test all these scenarios for text input. Any app that activates keyboard focus stops a Keynote presentation... so we had to find the right combo of settings that didn't activate an app, so my app is usable above a Keynote or Powerpoint presentation.