In early April, open-source social platform Mastodon had its 15 minutes of fame. The service has been compared ad nauseam to Twitter, from which it borrows its basic structure: short messages from users, retweets (or retoots, in its parlance), chronological timelines updating in real-time, and so on. Mastodon’s layout even cops a basic version of Tweetdeck, the popular third-party Twitter software