Borrow checker

Rust's compile-time ownership-and-borrowing analysis that statically guarantees memory and thread safety without a garbage collector, rejecting use-after-free and data races before the program ever runs.

grounded in: This system's frontend is built in Rust/Yew/WASM with a pinned Cargo.lock enforced by CI (doctrine + `rust` concept); grounded in the HN trend theme 'deep, long-lived memory-safety flaws keep surfacin