Rust Embedded and no_std

Keep the firmware bootable, bounded, observable, and testable on a host. Do not add an executor, allocator, or hardware abstraction until the product needs it. A synchronous static program is the smallest reliable firmware.

Use these skills, when they are installed, for adjacent work:

• cargo-workflows for workspace features, profiles, and CI gates;
• rust-native-linking when firmware links a C library or vendor SDK;
• rust-unsafe for raw pointers, SAFETY comments, and soundness review;
• memory-model for atomic orderings and general static mut rules;
• rust-wasm for wasm32v1-none and other WebAssembly targets.

Failure triage