This will NOT be about counting some nonsensical NFTs, or quantitative analysis of a made-up cryptocurrency - this is about data architecture and technical innovations in Web3 that will soon reach both enterprise and scientific data space.

You will learn about:

- Web3 design principles - personal data ownership, decentralized identity, verifiability
- Using data on blockchains - smart contracts and the oracle problem
- Analytics on blockchain data - Ethereum logs and indexers
- Decentralized storage and physical infrastructure networks

// build.rs
fn main() {
    println!("cargo::rustc-check-cfg=cfg(windows_is_host_os)");
    if cfg!(windows) {
        println!("cargo:rustc-cfg=windows_is_host_os");
    }
}

// somewhere in the frontend code
#[cfg(windows_is_host_os)]
{
    // Windows
}
#[cfg(not(windows_is_host_os))]
{
    // Not Windows
}