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Via [Wayback/Archive] Stephan (TheTraveller@sw-development-is.social) on Twitter: “Would you like to improve your programming skills online? I recommend trying exercism.io. It’s free and you can get feedback from real humans (if you’re in the #Ruby track, may be even from me 😀 ). #exercism #ISupportExercism”
–jeroen
The Wiert Corner - irregular stream of stuff 