Are you sure you know how to handle errors in Go properly?

If you've been writing in Go for more than a couple of months, the if err != nil construct is already muscle memory. The language's philosophy dictates a simple rule: we don't ignore errors, we don't hide them, and we don't rely on global exception catchers - we handle them explicitly. But it's one thing to write a three-hundred-line script, and quite another to design a system that needs to be maintained for years. In large projects, improper error handling makes logs unreadable, and finding t