Where to put data created by AppDaemon and rendered by front end?

Use case: I’m writing an AppDaemon script to monitor a bunch of devices. It generates a list of issues to address and I want to render them in a custom card on the front end.

I can’t figure out where to persist the data. I thought input_text would work, but it has a data limit of 255 characters and I’m sending out JSON data that exceeds that size (fyi writing too much data fails silently).

I don’t need this data to be saved in history, but it also won’t change often enough to cause issues.

This seems to be a common type of question with a variety of different ways of solving (e.g. pushing data into entities), but all of the approaches seemed messy. Is my only choice to push the data to an external store and request that data from the front end?