Idea: light weight rust as zero build scripting language with JIT runtime

Tested.

cargo script is not zero build.

The most similar one might be evcxr.

But evcxr might be compile to .so.

Still not zero build like all node deno bun python...

Would be nice to trade off the performance of C‑level applications for the rapid iteration of JS‑level applications, with 100% correctness in the era of AI, and able to switch to performance of C‑level applications at release.