The most-relevant existing question I can find is Dual license Apache2.0 GPLv3 for a library with optionnal GPLed code and Bundling GCC along with my GPLv2 project, still, I could use some clarification.
I use GNU FreeFont to typeset some maths expression in user agents without MathML support, as well as to produce single-page HTML docs suitable for conversion to PDF formats using external softwares. To this end, the FAQ (as of March 2020) says
it's fine to arbitrarily license the PDF (since the PDF is considered the output of the font instead of the font itself); and
online websites must distribute the fonts' lincesing information along with the web pages (if I understood correctly, one way to do that is to make sure the font package content is intact).
On the other hand, I want to dedicate the template system to the public domain, and allow recipiants of my package to replace the fonts with whatever else they prefer. To that end, the FAQ says about bundling the fonts in non-GPL software: I must indicate it's a separate product and users can obtain it themselves.
Currently, there's a half-complete "tutorial" and a half-complete "license" in the docs for the templates. And what I'm doing right now, is that:
I've put the fonts in a subdirectory of my template files.
Included a text in the "tutorial" saying the fonts is bundled with the templates, where to obtain it, and it'ss used for maths expressions, and can be replaced if users find licensing conflicts.
Also in "tutorial", the relative path in the package to the directory containing the fonts.
Indicated in my "license" that: the templates are public domain; the fonts are from GNU and is GPLv3.
I think that might not be adequate as I'm telling users to replace the fonts rather than obtaining it from official sources.
My questions are:
Without including a full verbose text of license,
What should I tell users of the template system?
What should I tell users of the template system to tell website and PDF authors?
What do I need to do to make sure the templates can be placed in public domain?