Arguably Skaffold and other container tools are approaching Webpack in its nonstop build-edit-rebuild workflow. But it's still not part of the code's build proc

Arguably Skaffold and other container tools are approaching Webpack in its nonstop build-edit-rebuild workflow. But it's still not part of the code's build process. I'd like to see something like Webpack for native code. The hypothetical build system can, whenever files change, run the build again (in a container), execute tests (complaining when you break one), or let you keep the debugger open while you're editing (best attempt made to fast forward). This is probably better suited for modern languages with proper modules and incremental builds, like Rust, C++20, Java9.