I find both the article and the title a bit too simplistic for the topic. This is the classic "build vs buy" problem and I think it's one of the hardest problem

I find both the article and the title a bit too simplistic for the topic. This is the classic "build vs buy" problem and I think it's one of the hardest problems in softare development and maybe engineering in general. I've been bitten by both sides of the decision many times and apart from trivial cases (like `is-even`), it's hard to come up with universal rule of thumb to decide this, especially for cases where it matters.