On Sat, 12 Feb 2022 13:22:11 -0600, Behdad Esfahbod wrote: > http://mces.blogspot.com/2015/05/how-to-use-custom-application-fonts.html So you can attach your private FcConfig to a private PangoFcFontMap, inform the font map every time you change the FcConfig (eg, add more fonts to it), and you should be able to use that font map to create layouts and use normally, without switching FcConfig's all the time. That seems the right way to do it: create custom Fontconfig setups to control the behaviour of a font-rendering subsystem, rather than messing about with the global user-default configuration. By the way, I completely forgot to add a wrapper for FcInitLoadConfig() and FcInitLoadConfigAndFonts() to my Python binding <https://github.com/ldo/python_fontconfig>, but this has now been fixed.
