- Read
docs/hints.mdbefore component or styling work — Panda extraction rules, cascade/recipe traps and RAC behaviours that fail silently.packages/ui/README.mdholds the consumption setup and the CSS-variable contract (token names are API). - Storybook is the dev harness:
npm run storybook; CI isnpm run ci(typecheck + build-storybook). - Run
npm run format(Prettier) after making changes. - New files take a copyright header with the current year (2026):
(c) 2026, Micro:bit Educational Foundation and contributors+SPDX-License-Identifier: MIT— copy from an existing file.