What's on the site ? For site of javafuns.github.io, there would be following contents: java/python notes docker & k8s code snippet How to run on local environment ? To run this site on computer, execute 'bundle exec jekyll server'. Thanks This site is built with help of: http://jekyllcn.com/docs/home/ https://jekyllrb.com/docs/home/ http://jmcglone.com/guides/github-pages/.