Introduction to Waterbear
summary
A web toolkit that brings Scratch‑style blocks to browsers and claims to be a reusable toolkit for building languages not a Scratch clone; it includes a minimalist IDE (about 650 lines), block implementation (~800 lines), and a language definition (~650 lines), runs in Safari and mobile, exposes the text it generates and shows generated code, persists to localStorage, and already lives on GitHub and waterbearlang.com — it works but has limits: fixed-argument blocks, strong typing, no JavaScript round‑trip yet.
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