Thanks Pedro for confirming. I guess I will look at building a custom 
docker image with a basic sans serif font installed, and use and maintain 
that image going forward.

On Wednesday, June 30, 2021 at 7:07:24 AM UTC-4 pedro....-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:

> This is the normal behavior. Latin Modern comes packaged in LaTeX itself. 
> If you need a different font, you can customize your own docker image based 
> on the pandoc/latex image and install the appropriate package (installing 
> packages at runtime has not worked for me), or use --pdf-engine=xelatex and 
> map your fonts directory as a volume onto the docker container. In the 
> latter case, you can no longer use the `uses:` syntax in GitHub Actions, 
> but have to declare it with `run:`.
>
> Em quarta-feira, 30 de junho de 2021 às 05:11:25 UTC+1, Shakrmaker 
> escreveu:
>
>> Well, when I tried Elham my GitHub action run failed on the font, and 
>> when I check these in the factory local docker/latex 2.14.0.3 image, I seem 
>> to be coming up empty:
>>
>> # ls /usr/share/fonts
>> ls: /usr/share/fonts: No such file or directory
>> # ls /usr/local/share/fonts
>> ls: /usr/local/share/fonts: No such file or directory
>> # ls ~./fonts
>> ls: ~./fonts: No such file or directory
>> # fc-list
>> #
>>
>> The interesting thing to a newbie like me - is where is pandoc getting 
>> its default *Latin Modern* from the docker/latex image? Since the docs 
>> say for this latex variable:
>>
>> https://pandoc.org/MANUAL.html#variables-for-latex > *Fonts:*
>> *"fontfamily* font package for use with pdflatex: The default is Latin 
>> Modern <https://ctan.org/pkg/lm>."
>>
>> On Tuesday, June 29, 2021 at 11:50:21 PM UTC-4 Shakrmaker wrote:
>>
>>> Well, if I'm doing this correctly... when I spin up the 2.14.0.3 
>>> docker/latex image and poke around, in:
>>> /usr/share/fontconfig/conf.avail/
>>>
>>> I see in: 40-nonlatin.conf:
>>>
>>> <!--                                                                                   
>>>  
>>>   Sans-serif faces                               
>>>  -->                                                     
>>>         <alias>                                                   
>>>                 <family>Arshia</family>
>>>                 <default><family>sans-serif</family></default>
>>>         </alias>                                         
>>>         <alias> 
>>>                 <family>Elham</family>
>>>                 <default><family>sans-serif</family></default>
>>>         </alias>                                         
>>>
>>> ...and a continued long list of sans serif ^ font family entries.
>>>
>>> Does this mean they're available as a GitHub Action arg with -V 
>>> fontfamily=Elham, etc? I will try that out next.               
>>>
>>>

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