The first AI feature I shipped on a flat plan lost money on the third user who discovered it. Not slowly. Immediately. He was running a script through it on a loop because the UI did not stop him from doing that, and his single account burned through more in API costs that week than the feature was supposed to make in a month. I shipped the fix on a Sunday and rewrote the pricing on a Tuesday, and
You have probably seen a file named “go.sum” in almost every Go project you have worked on. You may have even seen it change every time you run “go mod tidy”. But do you actually know what it does? It is one of those files that works silently in the background, and some developers never stop to think about it. The “go.sum” file is one of those files you never really interact with directly, but it