🐼 Coding Panda Blog

The NeoBrutalist Blog Platform That Developers Actually Want to Use

Built with thick borders, flat shadows, and zero compromises.

🚀 Live Demo · 📖 Read the Blog · 🤝 Contribute · 🐛 Report Bug · ✨ Request Feature

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🎯 Why Coding Panda?

Most blog templates look the same — generic, forgettable, lifeless.

Coding Panda is different.

It's opinionated. It's bold. It's the blog you actually remember.

😴 What Every Other Blog Looks Like Generic sans-serif fonts Flat, forgettable cards No personality "Just another blog template" Static content, no CMS

🐼 What Coding Panda Looks Like Archivo Black headings that punch through the screen 4px flat shadows that make every element pop NeoBrutalist design that people screenshot and share Supabase-powered real-time content 90%+ test coverage because you ship what works

⚡ Get Running in 30 Seconds

# 1. Clone & Install
git clone https://github.com/XDEV200/coding-panda-blog.git
cd coding-panda-blog
npm install

# 2. Database Setup (Supabase)
# Create a new project at supabase.com and run the schema found in:
# ./supabase/schema.sql (SQL Editor in Supabase Dashboard)

# 3. Environment Config
cp .env.example .env.local
# Update .env.local with your PROJECT_URL and ANON_KEY
# Set NEXT_PUBLIC_APP_ENV=development to use dev_ prefixed tables

# 4. Launch 🚀
npm run dev

🛠️ Development Environment (Localhost)

To prevent polluting production data, this project uses a table prefixing strategy:

• Localhost: Uses tables prefixed with dev_ (e.g., dev_posts, dev_tags).
• Production: Uses original table names.

Ensure you have created the dev_ prefixed tables by duplicating the schema in your Supabase dashboard or using provided migrations.

🗃️ Required Database Tables

To ensure all features work (Likes, Tags, PWA, Admin), execute the SQL in schema.sql. The essential tables are:

• posts: Core blog content (title, slug, markdown, etc.)
• tags: Dynamic category/tag management
• post_interactions: Session-based likes and dislikes
• profiles: Admin and user roles for dashboard access

🏗️ Architecture — Clean, Not Clever

graph TB
    subgraph Client ["🖥️ Client Layer"]
        A[Next.js 15 App Router] --> B[React 19 Components]
        B --> C[Tailwind + Neo Design Tokens]
    end

    subgraph Data ["☁️ Data Layer"]
        D[Blog Service] --> E[Supabase Client]
        E --> F[(Supabase PostgreSQL)]
    end

    subgraph Infra ["🔧 Infrastructure"]
        G[PWA Service Worker]
        H[Security Headers]
        I[Image Optimization]
    end

    A --> D
    A --> G
    A --> H
    A --> I

    style Client fill:#FDE047,stroke:#0A0A0A,stroke-width:3px,color:#0A0A0A
    style Data fill:#60A5FA,stroke:#0A0A0A,stroke-width:3px,color:#0A0A0A
    style Infra fill:#4ADE80,stroke:#0A0A0A,stroke-width:3px,color:#0A0A0A

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🎨 The NeoBrutalist Design System

This isn't a theme — it's a design language. Every pixel is intentional.

🎯 Borders border: 2px solid #0A0A0A Thick. Unapologetic. Every surface has them.

🖤 Shadows box-shadow: 4px 4px 0px #0A0A0A Flat. No blur. No gradients. They move on hover.

🔤 Typography Archivo Black — Headings Space Grotesk — Body Heavy meets geometric. Readable at any size.

🎨 Palette #FDE047 — Panda Yellow #0A0A0A — Ink Black #FAFAFA — Paper White + 5 accent colors

Color System

Token	Hex	Usage
🟡 retro-yellow	#FDE047	Brand, CTAs, highlights
⚫ retro-black	#0A0A0A	Text, borders, shadows
⚪ retro-white	#FAFAFA	Backgrounds, cards
🩷 retro-pink	#F472B6	Category: Design
🔵 retro-blue	#60A5FA	Category: Tutorials
🟢 retro-green	#4ADE80	Category: Accessibility
🟠 retro-orange	#FB923C	Category: Announcements
🟣 retro-purple	#C084FC	Category: AI/ML

Shadow Hierarchy

neo        →  4px 4px 0px  →  Default state
neo-lg     →  6px 6px 0px  →  Featured cards
neo-xl     →  8px 8px 0px  →  Hero elements
neo-hover  →  2px 2px 0px  →  Active/pressed state

🧩 Component Library

Every component follows the Neo design system. No ad-hoc styles.

components/
├── ui/
│   ├── Badge.tsx          # 7 color-coded category pills
│   ├── Button.tsx         # 3 variants × 3 sizes with shadow animations
│   └── ThemeToggle.tsx    # Light/dark mode with smooth transitions
├── blog/
│   ├── BlogCard.tsx       # Standard + featured layouts
│   ├── BlogGrid.tsx       # Responsive grid with featured-first row
│   └── CategoryFilter.tsx # aria-pressed filter buttons
└── layout/
    ├── Navbar.tsx          # Sticky yellow navbar with dynamic theme
    └── Footer.tsx          # Dark footer with dynamic year

🗂️ Full Project Structure

coding-panda-blog/
├── 📁 app/                          # Next.js 15 App Router
│   ├── layout.tsx                   # Root layout — PWA metadata, ThemeProvider
│   ├── globals.css                  # Design tokens + Google Fonts
│   ├── page.tsx                     # Blog listing with live category filtering
│   ├── not-found.tsx                # Custom 404 page
│   ├── [slug]/page.tsx              # Dynamic blog post route (SSG)
│   └── api/blogs/route.ts           # REST API: GET /api/blogs?category=X
│
├── 📁 components/                   # UI component library
│   ├── ThemeProvider.tsx             # next-themes wrapper
│   ├── ui/                          # Atomic design components
│   ├── blog/                        # Blog-specific components
│   └── layout/                      # App shell (Navbar, Footer)
│
├── 📁 lib/                          # Business logic
│   ├── posts.ts                     # Data access layer (async, Supabase-backed)
│   └── utils.ts                     # Pure utilities: cn, formatDate, slugify, truncate
│
├── 📁 services/                     # Service layer
│   └── blogService.ts               # Supabase CRUD operations
│
├── 📁 types/                        # TypeScript interfaces
│   └── blog.ts                      # BlogPost, BlogCategory
│
├── 📁 public/                       # Static assets
│   ├── manifest.json                # PWA manifest
│   ├── sw.js                        # Service worker (auto-generated)
│   └── icons/                       # App icons (192, 512, apple-touch)
│
└── 📁 __tests__/                    # Test suite (90%+ coverage)
    ├── lib/                         # Unit tests for utilities & data
    ├── components/                  # Component render & interaction tests
    ├── services/                    # Service layer tests
    └── app/                         # Page & API route tests

🛡️ Security — Not an Afterthought

Every request is hardened with production-grade security headers:

Header	Value	Why
X-Content-Type-Options	nosniff	Prevents MIME-type sniffing attacks
X-Frame-Options	DENY	Blocks clickjacking via iframes
X-XSS-Protection	1; mode=block	Legacy XSS filter activation
Referrer-Policy	strict-origin-when-cross-origin	Controls referrer data leakage
Permissions-Policy	camera=(), microphone=(), geolocation=()	Disables unnecessary browser APIs
poweredByHeader	false	Hides Next.js fingerprint

All external links use rel="noopener noreferrer". No information leaks.

♿ Accessibility — WCAG 2.1 AA

This blog is built for everyone, not just sighted mouse-users:

• ✅ Semantic HTML — header, nav, main, article, footer
• ✅ ARIA landmarks — Every navigation region is labeled
• ✅ aria-pressed — Category filter buttons communicate state
• ✅ aria-live="polite" — Post count updates announced to screen readers
• ✅ Focus-visible rings — Every interactive element has keyboard focus styles
• ✅ Color contrast — All text meets WCAG AA contrast ratios
• ✅ Reduced motion — Animations respect prefers-reduced-motion

📱 PWA — Install It. Use It Offline.

Coding Panda works as a Progressive Web App out of the box:

Feature	Implementation
🔌 Offline Support	NetworkFirst caching via Workbox
📲 Installable	Full manifest.json with icons
⚡ App Shortcuts	Home page shortcut in manifest
🎨 Theme Color	#FDE047 matches the Panda Yellow brand
🔄 Auto-update	skipWaiting + register: true

🧪 Testing — 90%+ Coverage or It Doesn't Ship

We don't guess. We test. Every component, every function, every edge case.

# Run the full test suite with coverage
npm test

# Watch mode for development
npm run test:watch

# CI mode with enforced thresholds
npm run test:ci

Coverage Thresholds

Metric	Threshold
Lines	≥ 90%
Functions	≥ 90%
Statements	≥ 90%
Branches	≥ 85%

What We Test

Layer	Tests	What's Covered
lib/utils.ts	20 tests	All pure functions, edge cases, type coercion
lib/posts.ts	18 tests	Data integrity, async operations, error paths
UI Components	40+ tests	Render, variants, a11y attributes, interactions
Blog Components	20+ tests	Grid layouts, filtering, featured cards
Pages	10+ tests	State management, loading states, aria-live
API Routes	8+ tests	Status codes, filtering, cache headers, schema

🔌 API Reference

GET /api/blogs

Returns all posts, sorted by date (newest first).

GET /api/blogs?category=tutorials

Filter by category. Available categories: design, tutorials, accessibility, announcements.

Response:

{
  "posts": [
    {
      "slug": "building-neobrutalist-components",
      "title": "Building NeoBrutalist Components",
      "excerpt": "A deep dive into thick borders and flat shadows...",
      "category": "tutorials",
      "tags": ["react", "css", "design-system"],
      "readTime": 5,
      "featured": true
    }
  ],
  "total": 1
}

🧰 Tech Stack Deep-Dive

Technology	Version	Why This?
Next.js	15	App Router, RSC, image optimization, SSG
React	19	Latest hooks, server components support
TypeScript	5.7	Type safety across every layer
Tailwind CSS	3.4	Design tokens as config, JIT compilation
Supabase	2.x	PostgreSQL + real-time subscriptions + auth
next-pwa	5.6	Zero-config PWA with Workbox
next-themes	0.4	Flicker-free dark mode
Lucide React	0.473	Consistent, tree-shakeable icons
date-fns	4.1	Modular date formatting
Jest	29	Fast, reliable test runner
Testing Library	16	User-centric component tests

🚀 Extending Coding Panda

Adding a Blog Post

Blog posts are stored in Supabase and fetched via the blogService. Add a row to the posts table with:

{
  slug: "your-post-slug",
  title: "Your Post Title",
  excerpt: "A brief description...",
  content: "Full markdown content...",
  category: "tutorials",
  tags: ["react", "nextjs"],
  readTime: 5,
  coverColor: "#60A5FA",
  featured: false
}

Adding a Category

1. Add posts with the new category string in Supabase
2. Add a colour mapping in components/ui/Badge.tsx → CATEGORY_VARIANT_MAP
3. The CategoryFilter auto-discovers categories from the data

Swapping the Backend

The blogService.ts is the only file that talks to Supabase. Swap it for any backend:

blogService.ts  →  Your CMS / REST API / GraphQL / local MDX
     ↓
  lib/posts.ts  →  Same API, same types, zero component changes
     ↓
  Components    →  They never know the difference

📜 Available Scripts

Command	Description
npm run dev	Start dev server with HMR
npm run build	Production build + PWA service worker
npm start	Start production server
npm test	Run all tests with coverage report
npm run test:watch	Tests in watch mode
npm run test:ci	CI tests with enforced 90% threshold
npm run lint	ESLint

🤝 Contributing

We love contributors! Whether you're fixing a bug, suggesting a feature, or improving documentation, your help is welcome.

Please read our Contributing Guide to get started with the development process and understand our engineering standards.

All contributors are expected to follow our Code of Conduct.

Quick Start for Contributors

1. Fork the repo
2. Create your feature branch (git checkout -b feature/awesome-feature)
3. Commit your changes (git commit -m 'feat: add awesome feature')
4. Push to the branch (git push origin feature/awesome-feature)
5. Open a Pull Request

📄 License

This project is licensed under the MIT License — see the LICENSE file for details.

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Built with 🖤 by XDEV200

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