A collection of ~100 standalone Lua helper functions that implement JavaScript/TypeScript standard library behaviors (Array.map, Array.filter, Promise, String.trim, Class, etc.) for code compiled from TypeScript by the tstl transpiler. Each file is a single-function module with no internal dependencies, making it trivial to extract and use as a polyfill for any Lua project that needs JS-like array/string/object operations. The pattern demonstrates clean one-function-per-file design and careful handling of Lua differences (e.g., 1-based indexing, mutable tables).

Headers defining C-linkage export functions and a module-linking function for each Dora engine class (e.g., SpriteWasm.hpp, Camera3DWasm.hpp, BodyWasm.hpp). They follow a consistent pattern: extern 'C' DORA_EXPORT functions returning int64_t raw pointers, and a linkXxx(wasm3::module3&) function that calls link_optional for each export. This pattern enables wasm3 to call any engine API from WASM modules. It is reusable for any C++ project needing to expose a large class hierarchy to a WASM runtime with minimal overhead.

Implements a singleton ownership lease for the game preview runtime, preventing concurrent agent operations from corrupting the running state. Uses a simple string-based owner ID, acquire/release methods, and a run counter to predict next run IDs. The pattern is a non-obvious solution to synchronizing LLM-driven code edits with a live preview environment. It could be extracted for any multi-agent or concurrent-edit system that needs to serialize access to a shared runtime.