Lion is a monorepo maintained by ING Bank that provides a comprehensive, white-label web component library built on LitElement. It focuses on accessible, performant, and extensible form controls (inputs, checkboxes, radio groups, selects, datepickers, IBAN, phone, file, etc.), overlays (dialog, tooltip, popover, drawer), navigation components (accordion, tabs, pagination, steps), and localization/internationalization utilities. The library is architected around a rich mixin system (e.g., FormControlMixin, ValidateMixin, OverlayMixin, LocalizeMixin) that allows deep customization without sacrificing encapsulation. It also includes Node.js tooling: an AST-based dependency analyzer (providence-analytics), a documentation publishing tool, and a Babel plugin for extending docs. The codebase demonstrates strong software engineering practices: extensive test suites, accessibility-first design, scoped custom element registries, and a modular export map. However, there are signs of technical drift (outdated dependencies like ESLint 8, TypeScript 4.9, Chai 4) and some duplicated code (e.g., localizeNamespaceLoader switch statements repeated across packages, translation drift). The monorepo uses changesets for versioning and has active CI/CD.
This repository is a curated 'awesome list' of Progressive Web App (PWA) resources, including apps, tutorials, tools, and videos. The primary content is a README.md file that organizes hundreds of PWA-related links by category. The only executable code is a Node.js script (`scripts/check-pwa.mjs`) that validates the listed apps by fetching their URLs and checking for PWA indicators (manifest link, service worker registration). This script runs as a CI job to maintain list quality. The repository is not a software application or data pipeline; it is a documentation/curation project with a supporting automation script. The script demonstrates good engineering practices (concurrent fetching, timeout handling, whitelist for undetectable PWAs) and is reusable for similar validation tasks.