Ipynb Format Output Kernel Choice?

[jlgraves-ubc]

Hi all,

Is there any way to specify the kernel for a .qmd document with output format .ipynb without using the Jupyter engine?

Basically, I have a .qmd file which uses R cells, which I would like to use knitr to render to HTML and also generate a version in .ipynb format which uses the irkernel.

I can get it to generate - but it always defaults the notebook to the python kernel instead of ir. If it use the jupyter engine, the formatting is less clean than the output version, and I must specify keep-ipynb: true which is not desirable.

[jlgraves-ubc]

The answer was pandoc:

format: 
  html: default
  ipynb:
    jupyter:
      kernelspec:
        display_name: R
        language: r
        name: ir

This renders normally using knitr, then creates a jupyter notebook with this spec; presumably this can also rejig other metadata in a notebook if you want to get fancier (https://pandoc.org/MANUAL.html#jupyter-notebooks)