Rust Foundations — The Stuff That Finally Made Things Click

The author learned Rust while building Wallet-as-a-Service systems at Garden Finance.

They used an Axum backend and a core crate named standard-rs to sign and broadcast transactions across multiple blockchains.

Rust enforces compile-time type tracking and borrowing rules; Non-Lexical Lifetimes make borrows end at last use.

&str is a borrowed view into bytes while String owns heap data; const is compile-time copied and static has a single memory address.