Four takes on the same editor-and-output playground. All run the core language in-browser via WebAssembly. Click any one to open it full-screen and try the Run button.
These are static visual mockups — the Run buttons reveal pre-baked output to convey the feel. Next step once you pick: wire the real tl-wasm runtime into a live CodeMirror editor (⌘↵ → Web Worker → output), add the examples gallery, share-via-URL and inline type-check. Mix-and-match welcome (e.g. “C’s hero + B’s split editor”).