Built with Ruby on Rails: https://rubyonrails.org/

Other libraries used:

https://github.com/vmg/redcarpet/blob/master/COPYING

https://github.com/rails/sass-rails

https://github.com/rails/jbuilder

https://github.com/rails/webpacker

https://github.com/sparklemotion/nokogiri

Primary programming language used:

https://www.ruby-lang.org/en/