If we reinvent the wheel, it’s safe to say that initially it probably won’t run as smoothly as the one that’s been around for more than 6,000 years. So if all you need is a wheel and you’re not trying to sell a new wheel, it’s a good idea to stick with the existing design. The same goes for software. If you just need a functionality, the best solution is usually to use something that already exists, a library that has already implemented it.
