Hi Bastian,
This font comes from the elixir-ex-doc package, it is used for displaying a few
icons in the generated documentation for Erlang. So, I think this bug should be
addressed to elixir-ex-doc and not to erlang.
The font is generated from icons from https://remixicon.com/
The icons have the following license:
https://github.com/Remix-Design/remixicon/blob/master/License
It permits personal and commercial use of icons, including
modification and redistribution.
But it prohibits reselling the icons themselves and using them for
branding, which is likely makes
them non-free. So looks like I'd have to replace this font by some
other one with similar icons,
or may be the font is free enough to use it as is (with proper licence
documenting in elixir-ex-doc).
Cheers!