Square today announced it is open-sourcing everything behind the photo-sharing tool Viewfinder on GitHub. All 250,000 lines of code have been released, covering Viewfinder server, as well as its Android and iOS apps. Square engineer Peter Mattis explains, the open-sourcing move is a last hurrah: We’re releasing this code in the hopes that it can be of utility to others, either as an archaeological resource or as the basis for other exciting efforts. Our days are now filled with other priorities, so we won’t be able to provide support or bug fixes for this code. And while the code is...

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