What is the primary use of the REPL kernel?

[janckerchen]

If the MIME renderer cannot be activated, What is the primary use of the REPL kernel?

[redking00]

@janckerchen ,
To display the object you must use Deno.jupyter.display(...)
In this case (polar objects) it is the kernel that transforms the object into Displayable. Take a look at https://github.com/denoland/deno/blob/main/cli/js/40_jupyter.js to see what I mean.
My Deno.jupyter.display support in the repl is not there (yet?).
Now I am working on running the REPL kernel in a pseudoterminal environment to get better support for the text decorations with ANSI sequences that the repl performs.
My ultimate goal is to have a good standalone kernel for deno notebooks and, for that, I am exploring some possibilities.
All suggestions are welcome!

[janckerchen]

The Jupyter kernel comes pre-installed with Deno, and using the REPL kernel does not remove the Jupyter kernel, and won't offer additional capabilities for the Jupyter kernel. Therefore, what is the main purpose of developing the REPL kernel?

Perhaps I didn't fully grasp the meaning of to get better support for the text decorations with ANSI sequences that the REPL provides.

[redking00]

@janckerchen ,
What provides better support for text decoration is running the repl in a pseudoterminal environment.

The reasons to explore repl as an alternative to the kernel are:

1. Communication with the repl does not depend on native dependency on ZeroMQ.
2. The repl is inspectable.
3. Experience will make it easier for me to implement controllers for other languages ​​where there is a repl but not a kernel.
4. The repl does not have to run with --allow-all.