I am looking for a way to amend a typescript for the additional use of cyrillic characters.

I currently use:

 \starttypescript [sans] [optima]
   \setups[font:fallback:sans]
   \definefontsynonym [Sans]           [file:Optima.ttc(Optima Regular)]     [features=default]
   \definefontsynonym [SansBold]       [file:Optima.ttc(Optima Bold)]        [features=default]
   \definefontsynonym [SansItalic]     [file:Optima.ttc(Optima Italic)]      [features=default]
   \definefontsynonym [SansBoldItalic] [file:Optima.ttc(Optima Bold Italic)] [features=default]
\stoptypescript

\definetypeface [optima] [ss] [sans] [optima] [default]
\definetypeface [optima] [rm] [serif] [optima] [default]
\definetypeface [optima] [tt] [mono] [modern] [default]
\definetypeface [optima] [mm] [math] [pagella] [default]

\setupbodyfont [optima]

But Optima doesn’t have cyrillic characters. So, either I have te  use another typescript. I tried creating a Helvetica (as Helvetica.ttc on macOS seems to have cyrillic characters) but did not succeed.


I also tried

\language[ru]

without any \setupbodyfont hoping it would also fix the font issue but keep getting

fonts           > checking > char –® (U+00428) in font 'LMRoman10-Regular' with id 8: missing

I read the languages-mkiv document but it did not say what I had to do about fonts.

What do I have to do to get both English and Russian in my document in terms of fonts?

G