The community wiki is huge, can you please paste the address that contains the broken link?

https://community.kde.org/Books
Under the section "KDE Frameworks Cookbook"

I think he's referring to this wiki page

https://community.kde.org/KDE_Documentation/KdeBooks

or maybe this one: https://community.kde.org/Books

I see that the source code for the book is in the Gitlab repo:
https://invent.kde.org/documentation/kf5book

But I'm not sure how to turn that into a .pdf file.

I remember that you used to be able to download the book by clicking on the "here" link, but because that link goes to a Nextcloud server that changed domains (share.k.o -> collaborate.k.o) the link doesn't work anymore.

Valorie, do you remember who we created that book at all?

s/who/how

After a week of hard work, I have created a reasonable facsimile of the book. You can access it on my website: https://davidcbryant.net/kf5book/kf5book.pdf.

I converted the individual chapters (in .md format) and used a free on-line service to convert the markdown to TeX / LaTeX. Then I used Kile to string the whole thing  together, and compiled a .pdf file that way. I put the chapters in alphabetical order, except for the chapter about writing a new frameworks app, which I placed last.

There were a lot of broken hyperlinks. Most of those have been fixed, but I still need to proofread the whole thing one more time.

I have been digging into the CMAKE files for project kf5book (https://invent.kde.org/documentation/kf5book). I finally got the .pdf file to generate using "kdesrc-build kf5book". I had to do several things to get it to go.

-- I had to install "pandocs" and also "snippetextractor". "pandocs" is part of my distro (Gentoo), so that was easy. "snippetextractor" is sort of obscure, so I had to clone the source for snippetextractor, after which "qmake -o Makefile snippetextractor.pro && make" generated the object program. I then moved the object program from the build directory into my PATH, so it woud be usable.

-- I had to change a command line in the CMakeLists.txt file:

add_custom_command(OUTPUT KDE-Frameworks-Cookbook.pdf
    COMMAND ${PANDOC} --toc --number-sections ${files} -o KDE-Frameworks-Cookbook.pdf
    --template=${CMAKE_SOURCE_DIR}/pdf-template.tex
    --chapters
    DEPENDS ${files} pdf-template.tex
)

The "pandocs" program no longer supports  a "--chapters" option. It works OK if "--chapters" is changed to "--top-level-division=chapter".

-- I had to add some customization to the "pdf-template.tex" file from the repo.
(add after line 131)
\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}

because "pandocs" throws a "\tightlist" command into every itemized list it generates, and \tightlist is not a standard LaTeX function.

-- With these changes, kdesrc-build can create an html file, and a pdf file. The "epub" command is still not working correctly. Maybe I can get that fixed tomorrow.

I made a couple of commits in gitlab. "kdesrc-build kf5book" now creates a .pdf file, and an html file. The "epub" still dies:

gmake[2]: *** [CMakeFiles/epubbook.dir/build.make:85: KDE-Frameworks-Cookbook.epub] Error 6
gmake[1]: *** [CMakeFiles/Makefile2:139: CMakeFiles/epubbook.dir/all] Error 2
gmake[1]: *** Waiting for unfinished jobs....
[ 86%] Built target htmlbook
[ 97%] Built target pdfbook

I can't figure that problem out. I checked the command syntax on line 85 of "build.make", and it looks OK to me. Albert, is it OK to load the .pdf file directly into the community wiki? Or is there some sort of auxiliary storage area where it ought to reside?

I loaded the book into the new "collaborate" web site (https://collaborate.kde.org/apps/files/?dir=%2FCommunity+Notes%2FFrameworks&fileid=50425) and I fixed the broken hyperlink in https://community.kde.org/Books.