Parallel Typesetting

[Hendursaga]

Hello Groffers!

I'm trying to see how much trouble it would be to typeset a bilingual text 
parallel by pages, as in, one language on the recto page, the other on the 
verso page, synchronized somehow by paragraph, preferably more or less 
automagically. I've searched the list already and came upon an interesting 
albeit two decade old message[1] that went unanswered as well as a much more 
recent thread[2] that deals with parallel typesetting with columns, on the same 
page, which is NOT what I'm looking for.

Any ideas?

Regards,

Hendursaga

[1] https://lists.gnu.org/archive/html/groff/2001-08/msg00032.html
[2] https://lists.gnu.org/archive/html/groff/2017-09/msg00014.html