serde_yaml migration comparison
| Option | Source changes | Maintained engine | Legacy behaviour retained |
|---|---|---|---|
noyalib-serde-yaml | No | Yes | Yes, by documented contract |
Direct noyalib | Yes | Yes | Opt-in compatibility profile |
Archived serde_yaml | No | No | Yes |
Use this facade when a reversible package rename and known legacy behaviour are
more important than adopting the native noyalib API immediately. Prefer direct
noyalib for greenfield code. The detailed behavioural boundary and captured
evidence are in the contract.