I assume this is not original at all at this point

I assume this is not original at all at this point - but (extreme) DRY is not a good practice. My experience is that a bit of copying yourself and your colleagues in the code base often make maintenance of the code base easier.

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I think DRY should just die. It lacks any of the nuance of why copying code is a bad idea. I prefer thinking about a single source of truth and whether two pieces of code are semantically related rather than just happen to look similar. I also think identifying such similarities is hard without first seeing the repetition in a few instances and it is much better to add another copy than introduce the wrong abstraction; unless it’s really obvious then just wait for more repetitions first.

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