[cairo] Question about Unicode and font family families

[camel-cdr at protonmail.com]

Hi.
I had some problems with cairo_show_text not displaying Unicode correctly.
It used to work back on my Debian setup, but some characters don't seem to work on arch.
This should be a problem with the font config, but I don't now what to do.
The terminal and all other applications display the characters without a problem.
These are some of the characters that don't work:
"☢ ☃"

On a slightly related note, how is it possible to select a specific font family for Cairo.
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