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From: Eli Zaretskii <eliz@gnu.org>
Newsgroups: gmane.emacs.devel
Subject: Re: Image transformation filter for upscaled images
Date: Mon, 08 Mar 2021 15:34:18 +0200
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To: Stefan Kangas <stefankangas@gmail.com>
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 (message from Stefan Kangas on Sun, 7 Mar 2021 20:31:40 -0600)
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> From: Stefan Kangas <stefankangas@gmail.com>
> Date: Sun, 7 Mar 2021 20:31:40 -0600
> Cc: Alan Third <alan@idiocy.org>, emacs-devel <emacs-devel@gnu.org>
> 
> IIUC, there should be no issue distributing fonts with Emacs for free
> operating systems but there might be some problems on some proprietary
> ones.

There's no technical problem with this, but installing a private font
is not trivial on all systems, as you need to perform supporting
steps, like update the font caches etc.  I'd rather we avoided that.

Also see my other message about the disadvantages of using emoji.