- <https://stackoverflow.com/questions/17692428/what-is-ffreestanding-option-in-gcc> - <https://surma.dev/things/c-to-webassembly/> CMDLINE: `--target=wasm32 -fno-builtin --no-standard-libraries -Wl,--no-entry -Wl,--allow-undefined -Wl,--export=...`