Cosmopolitan experiments

Warning: on OSX you need x86_64-elf-gcc (brew install x86_64-elf-gcc)

Some jart/cosmopolitan experiments with :

• C
  • hello_c.c
• Rust (inspired by https://users.rust-lang.org/t/build-once-run-anywhere-cosmopolitan-libc/66528)
  • hello_rust.rs
  • Required at least Rust 1.62 and the target x86_64-unknown-none
• Nim (inspired by Yardanico/cosmonim)
  • hello_nim.nim