To show how current this topic is, there's an interesting and related discussion upcoming at NYC Bug, For the Love of Troff, on Wed @ 18:45 (I'm guessing Eastern), via Zoom:

https://www.nycbug.org/index?action=view&id=10678



On 11/30/20 2:11 PM, arnold@skeeve.com wrote:
Clem Cole <clemc@ccc.com> wrote:

I think O'Reilly was the last commercial publisher with a troff toolchain.
They stopped using troff directly well over 20 years ago.
These days if you're using a markup language and their toolset it's
either Asciidoc or docbook.

I think it depends on who you are and your editor is at the said firm.  Tim
will still take troff
I assume you mean Tim O'Reilly?  He hasn't been involved in the book
side of his business in decades, and as I said, troff isn't in the picture
there.

as will John Waite at Pearson.
They farm such things out, they don't accept it in house.
Or the author can provide "camera ready copy", which these days
just means PDF.

  That said, as Jon can tell you, Bill will not.
No idea who Bill is.

Arnold


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