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5 open source alternatives to Trello

If you’re not familiar with Trello or the concept of a kanban board, it’s pretty simple. Items on a list are each treated as “cards.” Offline versions often use Post-It Notes moved across a series of bins. It’s based on a process developed for manufacturing, but widely adopted by the lean software development community. Cards might represent a feature, which is moved across a board to represent its flow through development, review, testing, and deployment.

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