• When running examples in this repository, use the Justfile recipes instead of invoking cargo run or python directly.
• Use just examples from the repository root to run the full example suite.
• To run examples for a specific sandbox, use module-scoped recipes: just wasm examples, just js examples, just python examples, just dotnet examples.
• Use just build from the repository root to build all subprojects and SDKs.
• Reason: the example commands depend on WIT_WORLD being set to src/wasm_sandbox/wit/sandbox-world.wasm; the Justfile handles that setup.

Make things cross-platform where possible (window/mac/linux). Mac supprot for hyperlight isn't avaliable yet but is coming.

• After changing WIT interfaces: you must run just build (or at minimum rebuild the guest .wasm and .aot files) before running examples. The pre-compiled guest binaries embed the WIT signature; a mismatch causes "Host function vector parameter missing length" errors at runtime.

• Formatting and linting: always use just fmt and just fmt-check from the repository root instead of invoking cargo fmt, ruff format, ruff check, or dotnet format directly. The Justfile recipes run multiple tools in sequence and missing a step causes CI failures.