Not sure if this is helpful for anyone, but I was looking for a way to "install" this so I could use it for multiple classes instead of copy/pasting it places. Using Ubuntu 20.10 groovy with LatTeX workshop/VSCode. Ended up doing the following
- git clone jdf into /usr/share/texmf/tex/latex/jdf
- run "texhash"
Thanks for making this available, quite helpful for writing reports for my OMSCS classes