This is how I installed the french language from ssh.
cd "${HOME}/.kodi/addons"
curl -OL 'http://mirrors.kodi.tv/addons/matrix/resource.language.fr_fr/resource.language.fr_fr-9.0.36.zip'
unzip resource.language.fr_fr-9.0.36.zip
rm resource.language.fr_fr-9.0.36.zip
I would like to do the same with the addon service.system.docker.
But I can’t find the right url to download the zip file.