Run from `rust/` unless noted.
```bash
cd rust
cargo run --quiet --example quickstart
```
Source: `quickstart.rs`
```bash
cd rust
cargo run --quiet -- quickstart
cargo run --quiet -- conformance
```
Crate surface: `agentledger-runtime`. The library crate is imported as `agentledger`. See `../README.md` for package metadata and API examples.