paperdigits

% ConTeXt frontmatter
\{start,stop}frontmatter?
> > alternatively, how can I use alphabetic page numbering there?
> > (preferably by using some \setup command that I'd use in my environment
> > file).
>
> \startsectionblockenvironment[frontpart]
>
>    \setupheader[state=stop]
>    \setupfooter[state=stop]