All eight cases below are written in Rust and compiled to WebAssembly — zero runtime dependencies, no framework, no build toolchain in the browser. Game rules and numerical computation live entirely on the Rust side; JavaScript only loads the modules, paints the canvas and forwards input, so every case is genuinely playable right here on the page.
Rust → WebAssembly · Zero DependencyGames validate interaction and state machines, scientific visualization validates algorithms and numerical accuracy, physics simulation validates integrators and stability criteria — together they cover the three most common classes of engineering risk in delivery.
Hand-written extern C exports with no wasm-bindgen: the artifact is the bare wasm, with no generated JS glue step.
Rust writes drawing commands into linear memory; the front end reads them sequentially with getUint32 — zero copy, no string parsing.
Geometry asserts areas, simulation asserts energy drift: math and physics errors surface in unit tests rather than on a customer site.
Page copy and case metadata are injected by the build script, and both language versions share one renderer, so the two can never drift apart.
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