It Works on My Computer. So Why Doesn't It Work on Yours?

It Works on My Computer. So Why Doesn't It Work on Yours? Every developer has probably come across this situation at some point. You build something, test it on your computer, everything works, and then someone else tries to run it and suddenly there are problems. Sometimes it's a missing dependency. Other times, it's a different software version, an environment variable that wasn't configured, or a file path that only exists on your machine. This is why getting an application to work on your computer is only part of the job. You also need to think about how someone else will set it up and use it. Tools like Docker help developers create consistent environments, while clear setup instructions make it easier for other people to run a project. If you're building projects to add to your portfolio, don't just show screenshots of what works. Make sure someone else can actually run your code too.