Just performed a quick test to understand how it compares to wasm2c.
For this test I took a ~25 MB wasm (WASI) file, clang.wasm

• w2c2 finishes in 5.1s, RAM usage: 193 Mb. Output: 1.3 GiB file (34.8 Mb zipped)
• wasm2c finishes in 1m23s, RAM usage: 1432 Mb. Output: 301 MiB file (22 Mb zipped)

Clearly, speed and RAM usage are really good 🎉 🚀
Wondering if file size can be reduced 🧑‍🔬

This also brings another question. C compilers are not very efficient when working with huge C files, so monsters like clang.wasm will take ages to compile. This is mentioned in my wasm2native tool: https://github.com/vshymanskyy/wasm2native#todo
One of the possible solutions is to split output into smaller chunks (which also enables parallel build).