Description: Duolingo is a free language-learning platform that offers over 100 total courses across more than 30 languages. The bite-sized lessons make it easy to learn a new language through fun, quick activities on your phone, tablet, or computer.
Type: software
Pricing: Freemium
Description: Puppet is an open source configuration management and automation tool. It helps system administrators manage IT infrastructure by automating repetitive tasks, enforcing desired state configuration, and increasing efficiency.
Type: software
Pricing: Paid