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Commandline Challenge - Test your command line skills
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
Cwiki - A Command line interface for searching Wikipedia!
Worklog - Track tasks in your browser with your favorite time tracker
Epic Coding Club - Existing platform to learn how to code while talking to your friendly chatbot
Design for Humans - An email course about emotional design