Broken PDF builds for RFCs

[tim-at-topos]

Previously, https://next.catcolab.org/rfc/0002.pdf hangs/constantly refreshes itself, and https://next.catcolab.org/rfc/0005.pdf doesn't exist (due to a problem I'll explain it a bit). This was "fixed" in #1310 by simply disabling PDF builds for now.

The reason that 0005 was failing to build (and thus the GitHub cache wasn't getting refreshed) is because the tikz-preamble used in the yaml header is used when running the Lua filter to render the individual tikz code blocks within the document for compilation to .html, but not when converting the whole file to a .tex file to then be built into a .pdf.

My guess is that we can simply make a custom .tex template for Quarto to use and then follow the example of our tikz.tex, inserting @OPTIONAL_PREAMBLE, and then something something something. @tslil-topos do you know a simple way to fix this?

[tslil-topos]

thanks for tracking this down, indeed i imagine that the solution is the "something something" path you alluded to: when triggering a pdf build, inline the @OPTIONAL_PREAMBLE to the end of the other pre-amble. I have no idea how difficult this is, i'm not presently familiar with the pdf build codepath.