[luke-stanley]

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?

[NilsIRL]

Unfortunately cosmopolitan wouldn't work for dockerc. Cosmopolitan works as long as you only use it but container runtimes require additional features. Also containers contain arbitrary executables so not sure how that would work either...

As for WASM, this is already possible using container2wasm[0] and wasmer[1]'s ability to generate static binaries.

[0]: https://github.com/ktock/container2wasm

[1]: https://wasmer.io/

[luke-stanley]

That's interesting. Thanks for clarifying how it works and pointing to container2wasm and how it can be used. I guess if you had a Cosmopolitan WASM VM runner built into Dockerc or similar that bundled the WASM images with a cross-platform binary with the VM and image?

[mthoms]

As someone who's not overly familiar with Docker, how big are these executables in the end?

Edit: This was already answered here https://news.ycombinator.com/item?id=39622184