Build Systems with Speed and Confidence by Closing the Loop First!

A completely finished “loop” is when you can provide the required input to your system, and it produces the desired output (or side effects, if that’s how you like it). The “Close the loop first” technique is about closing this loop as fast as possible by creating a barebones version of it first, providing all or some required inputs, and generating a partial form of the desired output.
Once we have closed this barebones loop, we can then begin implementing behaviours from the inside out, so that with each new change our loop starts looking more like the actual system we

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