Hey is a decentralized social media application built on the Lens Protocol. It provides a full-featured frontend for users to interact with the Lens blockchain, including wallet authentication, post creation and engagement (likes, comments, reposts, collects, tips), group management, notifications, and profile customization. The application uses React 19 with Vite for bundling, TypeScript for type safety, and Tailwind CSS for styling. State management combines Apollo Client for GraphQL data persistence with Zustand stores for client-side state (account, notifications, preferences). Key architectural patterns include optimistic UI updates for blockchain transactions, portal-based modals, and custom hooks for transaction handling and media uploads. The codebase demonstrates strong modularity with reusable UI components and clear separation between UI, state management, and data layers.
Polar is an open-source, full-stack monetization platform designed for AI-era software developers. It serves as a Merchant of Record, handling checkout flows, subscriptions, usage-based billing, seats, discounts, and global tax compliance. The system is built as a monorepo with a Python/FastAPI backend (async SQLAlchemy, Dramatiq workers, PostgreSQL, Redis, Tinybird for event analytics), a Next.js web dashboard and customer portal, a React Native mobile app (Expo), a design system (Orbit), and multiple SDKs (TypeScript, Python) with a CLI tool. Architecture follows a service-oriented pattern with versioned REST APIs (2026-04, 2026-10, 2027-01), a repository pattern for persistence, benefit fulfillment strategies for integrations (Discord, GitHub, Slack, license keys), and framework adapters (Next.js, Nuxt, TanStack Start, Better Auth) for easy integration. The platform also includes an internal backoffice (HTMX/tagflow), observability (SLOs, invariants, Prometheus metrics), and merchant migration tooling from Stripe.
Cal.diy is a fully open-source, MIT-licensed fork of Cal.com, providing a self-hostable scheduling platform. It is a large monorepo containing a Next.js web application (apps/web) for booking pages, settings, and admin, a NestJS API (apps/api/v2) for platform REST endpoints, and extensive packages for business logic (packages/features), integrations (packages/app-store with 50+ apps), embeddable booking widgets (packages/embeds), and reusable React atoms (packages/platform/atoms). The architecture uses tRPC for client-server communication, Prisma ORM with PostgreSQL, Redis caching, and a custom dependency injection system (ioctopus) alongside NestJS DI. Key patterns include a tasker abstraction for async/sync background jobs (webhooks, emails, calendar sync), a versioned webhook payload builder factory, repository pattern over Prisma, and a consistent app-store integration structure. The platform exposes a public API with OAuth2, webhooks, and embeddable components for third-party developers. The codebase is actively maintained with frequent schema migrations and CI/CD pipelines, but exhibits some technical drift due to dual API surfaces (tRPC vs REST), stub implementations for enterprise features, and generated files that require regeneration.
This is a standalone Rust web server that implements Turborepo's remote caching API. It acts as a sidecar process, typically started inside CI pipelines (GitHub Actions, GitLab, Kubernetes), that forwards artifact storage and retrieval requests to any S3-compatible object store (AWS S3, Cloudflare R2, RustFS). The server exposes a small set of REST endpoints: health check, artifact upload/download/head, event logging, and a team artifact listing stub. Artifacts are streamed directly from the HTTP body to S3 (and vice versa) without buffering into memory. Optional Bearer-token authentication uses constant-time comparison, and the server is instrumented with OpenTelemetry for distributed traces and system-level metrics (CPU, memory) that are exportable via OTLP. The repository also includes a GitHub Action wrapper (Node.js) that manages the binary lifecycle—startup health polling, graceful shutdown, and log collection—and a multi-stage Docker build that produces statically linked Linux binaries and a universal macOS binary. The architecture is a monolith (single binary) built with actix-web, with clear separation into modules for settings, storage, authentication, routes, and telemetry. All artifacts are scoped under a team prefix derived from the Turborepo client's query parameters.
This repository is a modern, lightweight full-stack application template built with Turborepo. It consists of two main apps: a React single-page application (Vite + TanStack Router/Query/Form) for the frontend, and a Hono (Node.js) server providing an oRPC-based API with OpenAPI (Scalar) documentation. Authentication is handled by better-auth (email/password) with PostgreSQL via Drizzle ORM. The system supports CRUD operations for posts, includes dark/light theme toggling, and is fully containerized with Docker. The architecture follows a modular monorepo structure with shared packages for API contracts (oRPC), authentication, database schema and client, UI components (shadcn/ui), and reusable tooling configurations (ESLint, Prettier, Tailwind CSS, TypeScript). The codebase demonstrates strong engineering practices: environment variable validation with valibot, type-safe API contracts with oRPC, session-based auth with CORS, and a robust monorepo setup with Turborepo caching and dependency management.
This is an enterprise-ready monorepo starter for content-driven websites, combining Strapi v5 (headless CMS) as the backend and Next.js 16 (App Router) as the frontend, managed with Turborepo and pnpm. In production, it provides a visual page builder with dynamic zones in Strapi, rendered server-side by Next.js with ISR and cache revalidation via Strapi document middleware. The system includes end-user authentication (Better Auth + Strapi JWT), localization (next-intl), media handling (imgproxy), SEO helpers, preview mode, optional CDN purge (Azure Front Door), and observability (Sentry, Azure Monitor). It is not a data research repository; the hybrid nature comes from data seeding workflows and Strapi config-sync exports that version content-model layouts and permissions, but the dominant character is a full-stack web application starter. The architecture is a monorepo with two primary apps (`apps/strapi` and `apps/ui`), shared packages (`packages/design-system`, `packages/logging`, `packages/eslint-config`, `packages/shared-data`, `packages/strapi-types`), a Docusaurus documentation site (`apps/docs`), and a Playwright QA workspace (`qa/tests/playwright`). Key entry points include the Strapi bootstrap and admin panel extensions, the Next.js middleware chain (`proxy.ts`) implementing basic auth, redirects, auth guard, and security headers, catch-all ISR pages, and API routes for revalidation, CDN purge, and Strapi proxying. The primary data flow is content authored in Strapi → published → document middleware triggers UI revalidation → Next.js fetches Strapi content via server-side API clients and renders pages with ISR. External dependencies are modern and pinned (Next.js 16, React 19, Strapi v5, TailwindCSS v4, Better Auth). The codebase demonstrates high craftsmanship with clean abstractions: a composable proxy middleware chain, pluggable CDN and telemetry providers, a typed Strapi API client with pagination, a hierarchy service computing fullPath changes with redirect compaction, and a shared logging package with OpenTelemetry correlation. Testing is comprehensive with Vitest unit tests and Playwright e2e/visual/SEO/accessibility suites. Some scaffolding remains incomplete (e.g., `removeThisWhenYouNeedMe` markers), and the two rich-text editors (CKEditor and TipTap) introduce duplicate rendering paths. Overall, this is a strong, well-documented starter suitable for teams building content-rich websites with a modern stack.
A well-structured monorepo for building cross-platform Expo (React Native) applications using pnpm and Turborepo. The repository demonstrates a scalable architecture with three shared packages (eslint configuration, reusable UI components, and a home feature) and a single example Expo app that leverages Expo Router for navigation, react-native-reanimated for animations (parallax scroll, wave animation), expo-haptics for haptic feedback, and expo-symbols/expo-image for platform-adaptive icons and images. The code is organized following modern React Native best practices: typed routes, strict TypeScript, automatic dark/light mode, absolute imports, and Jest + testing-library/react-native tests for components. CI/CD is fully implemented via GitHub Actions with workflows for linting, building, testing, EAS deployments, and preview builds. While the application itself is a simple template (home screen with steps, an explore screen with informational collapsibles, and a modal), the architecture showcases a effective monorepo workflow with Turborepo caching and pnpm workspace protocols. The most notable technical components are a cross-platform icon abstraction (SF Symbols to Material Icons), a standalone parallax scroll view with Reanimated, and an in-app browser link adapter—all of which are modular and easily extracted for other projects.