Comment 99 for bug 521163

>Here is a conter-proposal with the fontconfig files properly split per font (ie
>I want a setup that any individual packager can trivially copy when he needs to
>package a new cjk font, not something that lefts him scratching his head and
>feel he'll go nowhere without going through the fontconfig packager)

First I think if you think so, repository maintainers are still free to choice the optimal way of rendering for their fonts.
Nobody and this solution inclusively doesn't restrain people from still doing what they were doing prior to it.
Second, per font config would be unable to provide good out of the box experience by default anyway on most of typical cjk setups after few custom fonts manipulations which you should think as common for today. The main purpose of centralised 41-zh,jp,ko... is to provide adequate fallbacks, rather than having a complete solution for everything zh,jp,ko

>I think I would like to propose just dropping 65-nonlatin.conf
>completely from conf.d and recommend distros to provide font .conf
>for each font they install as needed. This is basically
>what we are doing in Fedora today already and it works well.

Per language fallbacks what we are already discussing there would be doing exactly what are you trying to do now but in even more quirkless and non-intrusive manner, and yes they drops 65-nonlatin

I PROPOSE US TO HAVE A JOINT BRAINSTORM ON IRC.