# Porting singleton-registry to Other Languages
This guidance has been consolidated into the JigsawFlow implementation plan.
See: **[JigsawFlow PLAN.md — Section 2 (Core Semantics) and Section 11 (Cross-Language Reference)](https://github.com/dominikj111/JigsawFlow/blob/main/PLAN.md)**
That document covers the language-agnostic API surface, token design by language, thread safety by language, reference counting by language, and performance considerations for all ports (Rust, C++, TypeScript, ...).