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Condé Nast, Mike Mariani, Grace Browne, Francesca Tripodi, Jaipreet Virdi, Jeremy White, Will Knight, Boone Ashworth, Katrina Miller, Adrienne So

Gear How Stewart Butterfield Created Slack From a Failed Videogame At first, the software was hard to explain—nobody had ever used anything like it. It was based on a system his team developed for Glitch. He called it Slack.