Not invented here syndrom

Whenever I find that my code can be replaced with a system call, I go a long way to replace my call with the system call because I generally trust more the sytem libraries than my own code. When it comes to third party libraries, I am conservative. Sometimes they are outright buggy, sometimes they are correct but get deprecated and removed. And sometimes the whole system gets so complex due to the gross amount of third party code that no one wants to deal with the mess anymore and the project dies off. Hence, I like to try new 3rd party libraries and study them. But I commit into using them extensively only after thorough consideration of alternatives and testing.