Yeah, I think I agree with this. I think making GUIs and reverse engineering proprietary APIs are two things that frontier models make really pleasant - e.g. I made a menu-bar app (very similar to your temperatures dropdown, similar graph, SwiftUI) which connects via bluetooth to my Inkbird CO2 sensor, graphs the CO2 level over time, and looks fabulous.

The skills are useful, thanks for linking them! They'll be useful for my future projects like this. FWIW I've had good luck with using Claude Design first to do mocks.

At the same time, I think there's still the "is this worth doing a hyper-customized version of this software, if I'm also then responsible for fixing the bugs?". But I think increasingly as we improve our agentic workflows and make them more self-contained loops driving the result to completion, this becomes kind of a non-issue.

In general, I do think LLMs are bringing about a new age of hyper-customization, which I welcome.