Hello Friends:
How does one remove & replace the following text (which appears when pasted in, for example, Discord chats).
This app is built with Anvil, the platform for building full-stack web apps quickly and robustly.
I looked around (in settings, clone area, CSS, etc.) but can’t seem to locate it. I’ll look some more.
Thank you. 
Have you tried adding an app description? This comment seems to suggest that might do the trick:
Hi @hugetim Good to see you again. That’s an excellent suggestion. I forgot to mention that that was the first thing I did - filling in that empty box.
It didn’t change things initially, but after seeing your reply just now, I went back to delete and resubmit the URL to see what description would pop up (after the delay). This time it worked. 
Thank you!