I always tell myself that I should skip unit tests because it's just "a side project". Then I lose sleep over it. And I end up spending an additional week and a

I always tell myself that I should skip unit tests because it's just "a side project". Then I lose sleep over it. And I end up spending an additional week and a half working on it instead of actually shipping. In my opinion it really depends on the nature of the side project. If you're going to charge users or if it's an open source project like a python package or npm module that other developers are going to rely on, it's absolutely necessary that you do. Else, meh.