While in the shell/Linux, you can run Wasm executables as Wanix tasks like native Linux executables. This is currently achieved with 3 parts:

• wexec: Linux executable that uses /task to allocate, start, and attach STDIO to a wasi task for a Wasm executable
• preload: Linux library that decorates libc execve, execvp, execvpe to use wexec if there is a .wasm file extension
• init: shell init script that ultimately runs the Busybox shell with LD_PRELOAD pointing to preload

As a side effect of this approach, we cannot build Busybox as a static binary because using LD_PRELOAD requires the dynamic linker (ld-linux), which then means we need a handful of files in /lib.

We could drop most of the /lib files, the preload component entirely, and go back to using a static build of Busybox by using binfmt_misc to simply register wexec as the "handler" for .wasm files.

Seems ideal, but I've never used it before and only learned about it just as I got the ld_preload approach working.