DevOps is not only useful but it is also (now a days) vital if you're serious about your software.
Ever since software development became a thing, we have had to deal with integrating, building and delivering our software, but only now we are calling it DevOps.
That's because delivering your software fast has become just as important as developing it well. You either get your product on the market fast or someone else will.
You take the operations burden from the developers to let them focus on developing and apply continuous integration to make sure they move forward and never backwards.
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