While I agree that repos with docs should have "releases", in GitHub parlances, with compiled PDFs/ebooks/whatever, building it yourself is as simple as

    git clone https://github.com/f8-arch/doc.git f8-doc && cd f8-doc
    docker run --rm -v "$(pwd)":/data fabtesta/ubuntu-xelatex make  # or any other container with XeLaTeX that you trust
    xdg-open manual.pdf

I know how to do it. The sheer audacity that I am being asked to do it rubs me the wrong way. Once I am on my phone, then I am on my work pc with no rights. Then by the time I got home i have lost my interest