Correction:
My main concern with your understanding here is that you seem to be ruling
> out a babel-only or a polyglossia only configuration.
>
> What I could try is to explore using the same
> ((<lang>
> . (('rm' :font '<fname>' ...)
> ('sf' :font '<fname>' ...))))
> scheme for polyglossia and babel and then see which properties are common
> and which are not.
> My earnest concern here is that people could try to add babel-specific
> properties in a polyglossia configuration or viceversa.
> But if you could live with that, it would be OK for me.
>
I'm not going this path. I'm just going to explore if the language acting
as a key in the polyglossia config can be an Org language code ad what kind
of Pandora's box that opens, WRT org-latex-language-alist.
Best, /PA
--
Fragen sind nicht da, um beantwortet zu werden,
Fragen sind da um gestellt zu werden
Georg Kreisler
"Sagen's Paradeiser" (ORF: Als Radiohören gefährlich war) => write BE!
Year 1 of the New Koprocracy