0.1.0 inital release

Author: madeburo

.gitignore

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+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# misc
+/.next/
+/out/
+.next/
+.vscode/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

LICENSE

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+MIT License
+
+Copyright (c) 2026 Githubster
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Githubster
+
+![Githubster](public/og-image.png)
+
+Track your GitHub followers, unfollowers and following relationships.
+
+![Githubster](https://img.shields.io/badge/Next.js-16-black?logo=next.js) ![TypeScript](https://img.shields.io/badge/TypeScript-5.9-blue?logo=typescript) ![Tailwind](https://img.shields.io/badge/Tailwind-4.3-38bdf8?logo=tailwindcss)
+
+Githubster is a free, open-source tool that helps you understand your GitHub social graph. Instantly see who doesn't follow you back, discover followers you haven't followed yet, and get a clear overview of your connections — all without signing in or sharing any personal data.
+
+## Features
+
+- **Not Following Back** — people you follow who don't follow you back
+- **You Don't Follow Back** — people who follow you but you don't follow back
+- **Following** — everyone you follow
+- **Followers** — everyone who follows you
+- Search and filter within each tab
+- Optional GitHub token for higher rate limits
+- Dark theme with GitHub-inspired design
+- Fully client-side — no data stored on any server
+
+## Getting Started
+
+```bash
+# Install dependencies
+npm install
+
+# Run development server
+npm run dev
+```
+
+Open [http://localhost:3000](http://localhost:3000) in your browser.
+
+## GitHub Token (Optional)
+
+Without a token, the GitHub API allows 60 requests per hour. With a personal access token, you get 5,000 requests per hour.
+
+To create a token:
+1. Go to [GitHub Settings → Developer settings → Personal access tokens](https://github.com/settings/tokens)
+2. Generate a new token (classic) — no scopes needed for public data
+3. Paste it in the token field in the app
+
+## Tech Stack
+
+- [Next.js 16](https://nextjs.org/) — React framework with Turbopack
+- [TypeScript 5.9](https://www.typescriptlang.org/) — type safety
+- [Tailwind CSS 4](https://tailwindcss.com/) — utility-first styling
+- [GitHub REST API](https://docs.github.com/en/rest) — data source
+
+## License
+
+MIT

next.config.ts

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+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {
+  headers: async () => [
+    {
+      source: "/(.*)",
+      headers: [
+        {
+          key: "X-DNS-Prefetch-Control",
+          value: "on",
+        },
+        {
+          key: "Strict-Transport-Security",
+          value: "max-age=63072000; includeSubDomains; preload",
+        },
+        {
+          key: "X-Content-Type-Options",
+          value: "nosniff",
+        },
+        {
+          key: "X-Frame-Options",
+          value: "DENY",
+        },
+        {
+          key: "X-XSS-Protection",
+          value: "1; mode=block",
+        },
+        {
+          key: "Referrer-Policy",
+          value: "strict-origin-when-cross-origin",
+        },
+        {
+          key: "Permissions-Policy",
+          value: "camera=(), microphone=(), geolocation=()",
+        },
+        {
+          key: "Content-Security-Policy",
+          value: [
+            "default-src 'self'",
+            "script-src 'self' 'unsafe-inline' 'unsafe-eval'",
+            "style-src 'self' 'unsafe-inline' https://fonts.googleapis.com",
+            "img-src 'self' https://avatars.githubusercontent.com data:",
+            "font-src 'self' https://fonts.gstatic.com",
+            "connect-src 'self' https://api.github.com",
+            "frame-ancestors 'none'",
+          ].join("; "),
+        },
+      ],
+    },
+  ],
+};
+
+export default nextConfig;