It's usually possible, and often tempting, to build your own tools. For engineers in particular, there's a strong appeal to having total control over a custom-built product that will perfectly meet your specific requirements. Raygun itself originally came from an internal tool we built to monitor errors in a different product. But as our business matured and we started to think more strategically, we recognized the hidden, lingering costs to our DIY approach, and began to believe that internal tools were a misuse of the time and skills of our development team.