I wanted to read the VueJS docs on my eink tablet. HTML seems to work even better then EPUB in Boox NeoReader app.

vue3-docs-to-eink.sh

#!/usr/bin/env bash

set -e

TEMPORARY="vue-docs.md"
GUIDE_PATH="./src/guide/"
OUTPUT_EPUB="vue-docs.epub"
OUTPUT_HTML="vue-docs.html"

git clone --depth=1 https://github.com/vuejs/docs
cd docs

touch ${GUIDE_PATH}${TEMPORARY}
cat .vitepress/config.ts | rg -v 'html|//' | rg "/guide/[^']+" --only-matching | while read -r guide_path; do
  CURRENT_GUIDE=`echo $guide_path | xargs dirname | xargs basename`
  cat "src${guide_path}.md" | sed "s#images/#${CURRENT_GUIDE}/images/#" >> ${GUIDE_PATH}${TEMPORARY}
done

cd $GUIDE_PATH
pandoc $TEMPORARY -o $OUTPUT_EPUB
pandoc $TEMPORARY -o $OUTPUT_HTML
cd ../..
mv ${GUIDE_PATH}$OUTPUT_EPUB ./
mv ${GUIDE_PATH}$OUTPUT_HTML ./

A bit more explanation is needed:

script.sh: line 14: rg: command not found

Solved (in my case Mac os):

brew install ripgrep

script.sh: line 20: pandoc: command not found

brew install pandoc

It works... I would say: 70%

Opening the .epub with the Books app in my mac I see several errors with this message:

This page contains the following errors:error on line 342 at column 14: Specification mandates value for attribute setup
Below is a rendering of the page up to the first error.

I have opened the .html version in my Kobo and it works nice :)... 1 start ;)

Thank you for the comments. The use case is to be able to read the docs sort of comfortably with minimal effort. The input format and the build would have to be more sofisticated for e-book like level, this script was an attempt to have good enough experiance (reading inside browser was slighly below this on my e-ink device).

Thanks @lttr I am using the generated html version in my kobo (e-ink device)