I have an app that presents information via whiptail.
All my devices are fairly large screens - e.g. 1280x1024 or better, so I generally have a good number of rows and columns in text mode.
Some of my users are reporting usability problems, with portions of my screens being cut off, I presume because they have smaller displays/windows.
What number of rows/columns is safe to develop for/use as a minimum requirement?