Well, yes. But you only need be scared of Cthulhu if you have not seen Cthulhu as a puppy.
So, let's start with a puppy-like thing.
There are 2 main serverless environments I could try (because they are the 2 ones I know about)
1. Your endpoints are stateless
2. You don't rely on the filesystem for state
3. All the state you want, you put on the database
So it has no fonts, which it needs to do the image.
Looks like we have liberation fonts, so "Liberation Mono" should be available?
Also, I want people to be able to copy all or part of that text without typing it manually as if it were 1989.
The code looks exactly the same anyway.
Like this one.