Source code for https://www.nicolabs.net
bundle exec jekyll serve --livereload --drafts to start a local server with live reload and drafts preview.
See help.github.com/articles/using-jekyll-as-a-static-site-generator-with-github-pages for more detailed instructions, including installation of prerequisites.
Drafts are really not ready for publication. Some of the documents in
_drafts/ are old documents I've never finished...