Running voila without Internet

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voila still requires some scripts from internet as of March 2023.

I tried to fix it by customizing templates but I was not able to do it for MathJax. I worked it around by replacing internet URLs with local ones with nginx and I am sharing my config as it could be useful to someone else.

  sub_filter_types text/html text/css application/javascript;
  sub_filter 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-MML-AM_CHTML-full,Safe' '/vendor/mathjax-2.7.7-TeX-MML-AM_CHTML-full.Safe.js';
  sub_filter 'https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/latest.js?config=TeX-AMS_CHTML-full,Safe' '/vendor/mathjax-2.7.7-TeX-AMS_CHTML-full,Safe.js';
  sub_filter '[MathJax]/extensions/MathMenu.js' '/vendor/MathMenu-2.7.7.js';
  sub_filter '[MathJax]/extensions/MathZoom.js' '/vendor/MathZoom-2.7.7.js';
  sub_filter 'https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@^5/css/all.min.css' '/vendor/fontawesome.min.css';
  sub_filter 'https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@^5/css/v4-shims.min.css' '/vendor/fontawesome-v4-shims.min.css';
  sub_filter_once on;
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