sudo apt install ruby ruby-dev
echo '# Install Ruby Gems to ~/gems' >> ~/.bashrc
echo 'export GEM_HOME="$HOME/gems"' >> ~/.bashrc
echo 'export PATH="$HOME/gems/bin:$PATH"' >> ~/.bashrc
source ~/.bashrc
gem install jekyll bundler
bundle install
$ bundle exec jekyll serve --livereload
https://github.com/ganlanyuan/tiny-slider
$ ./generate_thumbnails.sh