Generate a run-everywhere file parting from static binaries compiled for different platforms?

[xplshn]

Hi, just an idea I had.

I've already implemented this in shell and Go as a runtime to which you attach various files + the uname -om for which they're for

But I'm thinking, is there any way to use APE for this?

Let's say I had compiled toybox (a busybox alternative that is correctly licensed) for OpenBSD, NetBSD and Linux (all amd64). Can I somehow embed all of those files into a single file that self-extracts the platform-specific one and runs correctly?

Is there a readily available way to do this? I want to generate these multi-arch binaries using the Cosmopolitan tooling.