I like the creativity, but I'm not sure it's needed. I've been building a large-scale database system using Opus 4.5, and targeting Rust. It's not perfect, but the Rust compiler is so helpful that Opus has solved a lot of problems on its own. I have around 100,000 lines of code, and have completed some major refactoring.
I am using a variation of spec-driven development.
This absolutely was NOT needed, just to be clear, it was just fun to do and, perhaps more importantly, it taught me a lot in the process of making it.
I also have a few geometric 3D printed objects on my desk that I made with openscad as "printing challenges" and then beat my head against my 3D printers for hours trying to actually print them. They did not need to be printed, they serve no purpose other than to be aesthetically pleasing and educational. :)
I am using a variation of spec-driven development.