This resonates. I actually ended up building a tool last year (CapSize) because I needed to churn out screenshots at a specific frame size for my day job and couldn't find anything that would just "lock" to 800x600 without a fight.

I'm not a dev by trade, so I did use AI as a power-tool to wrestle with the C++ and Electron parts. It turned into a bit of a rabbit hole—I ended up obsessed with keeping it entirely local/offline (no cloud APIs or telemetry) just to see if I could do things like local OCR in RAM. I ended up building two more tools to help me with making the one tool so it kind of spiraled into a small suite, but the main goal was just a no-frills utility that didn't require a login or a subscription just to crop an image.