What about Cosmopolitan and WASM? ;)

Cosmopolitan libc allows compiling of a single binary that runs on multiple OS platforms without modification – maybe Dockerc could use this to create a more universally portable container binary?

WASM binaries could run in the browser, or another WASM VM, including securely sandboxed environments that spin up fast.

I understand that newer Docker builds can use WASM under the hood so WASM in WASM would be funny, it seems if that were the case, maybe extracting the WASM with a more thin wrapper would be better?