Eh, I disagree. Oftentimes integrating someone else's wheel comes with so much added complexity that it rivals (or exceeds) making your own, and that code also

Eh, I disagree. Oftentimes integrating someone else's wheel comes with so much added complexity that it rivals (or exceeds) making your own, and that code also needs to be maintained, is at risk of library churn, etc. There are very real drawbacks to relying on other people's solutions to your problems. Sometimes they are outweighed by the hassle of implementing your own solution, but in many cases they do not.