Article: Standardizing WASI - A WebAssembly System Interface

[chungquantin]

Hey guys, I just found a great article about WASI. Today I learned about wasm and its ecosystem a bit because I was preparing for the upcoming PBA. Here is the exercise session that I am working on Polkadot Blockchain Academy - WASM executor. If you have time, you should give it a try. It is not related to blockchain but it gives you a candid view about the movement of the contemporary technology WASM.

What I can conclude is the difference between wasm32-unknown-unknown and wasm32-wasi. WASM is designed to be the Assembly language for a conceptual machine, not a physical machine. In that way, wasm32-unknown-unknown is a target for a 32-bit memory architecture machine without awareness of the OS. The problem occurs as the standard library in high-level languages like Rust or C can't be used because there is no support for OS which means no support for kernel mode API.

WASI is created to solve the issue of portability. Read it more here: https://hacks.mozilla.org/2019/03/standardizing-wasi-a-webassembly-system-interface/