Of course you may use ~/Source
or whatever directory you prefer for this:
cd ~/src
git clone https://github.com/KarlHegbloom/texmacs-lorem-ipsum.git
cd texmacs-lorem-ipsum
pushd ~/.TeXmacs/plugins
ln -s ~/src/texmacs-lorem-ipsum lorem-ipsum
popd
texmacs testit.tm
Please use the github issues tracker for this project when reporting bugs or requesting features. Thanks.