\usetypescript[modern-base][t2a]
\setupbodyfont[modern]

Should work in MkII if you have cm-super font package installed, but 
doesn't work for me, so I personally use my own typescript with custom 
fonts. Maybe someone can help me figure out why ConTeXt doesn't try to 
generate .tfm's for cm-super? Is there some command to increase verbosity?

Gour wrote:
> Hello!
>
> I was able to persuade one user to prepare ConTeXt package for NixOS
> distro, but, unfortunately, being from Russia he quickly discovered that
> he minimal example from wiki (http://wiki.contextgarden.net/Russian)
> does not work, i.e.
>
> \enableregime[utf]
> \useencoding[cyr]
>
> \definetypeface [russian]
>   [rm] [serif] [computer-modern] [default] [encoding=t2a]
>
> \setupbodyfont[russian]
> \starttext
> Мама и Папа % Some Russian characters
> \stoptext
>
>
> does transliterate Russian characters.
>
> I do not have any experience working with Cyrillic, so if anyone can
> provide minimal working example it would be very nice?
>
> I persistently claimed that "it must work!" :-)
>
>
> Sincerely,
> Gour
>
>   
> ------------------------------------------------------------------------
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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> archive  : https://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
>   

-- 
Best Regards,
Oleg Kolosov