What about Fontmatrix?
https://github.com/fontmatrix/fontmatrix

On 09/03/14 16:33, PCMan wrote:
> I'm interested in this, but I don't really know how to setup
> fontconfig correctly.
> Its rules are just too complicated.
> The rules can be combined with AND, OR operations, and can contain nested rules.
> I don't think that it's possible to create any full-featured yet
> easy-to-use GUI for it,
> A simple font installer is possible, though.
>
> On Sun, Mar 9, 2014 at 9:27 PM, Jerome Leclanche <adys.wh@gmail.com> wrote:
>> I've been looking thoroughly at font configuration and I cannot for
>> the life of me find any fontconfig gui other than the awful, awful
>> "font-manager" from gnome.
>>
>> Does anyone know a project with solid foundations we could look at? Or
>> is anyone up to the task?
>>
>> J. Leclanche
>>
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> Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce.
> With Perforce, you get hassle-free workflows. Merge that actually works.
> Faster operations. Version large binaries.  Built-in WAN optimization and the
> freedom to use Git, Perforce or both. Make the move to Perforce.
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