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| Atharv Dange's Projects - Full Stack Software Case Studies

$ls projects/

Things I’ve built - the decisions, trade-offs, and lessons along the way.

[active]★
Kleis OIDC

Built a production-grade OpenID Connect identity provider from scratch - implemented the OAuth 2.0 Authorization Code Flow with PKCE, RS256 asymmetric JWT signing, automatic refresh token rotation with theft detection, and shipped a plug-and-play Next.js SDK for client apps.

Next.jsTypeScriptNode.jsTailwind CSSExpressPostgreSQLPrismaTurborepoJose
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[active]★
Shikai

A beautifully crafted, read-only GitHub dashboard for Android. Browse repos, explore code, track your contribution streak, and share your profile - without the pressure of taking action.

ExpoReact NativeTypeScriptExpo RouterTanStack QueryZustandAxiosReact Native ReanimatedReact Native Gesture HandlerShopify FlashListShopify React Native SkiaReact Native MMKVReact Native WebViewExpo SecureStoreExpo ImageExpo HapticsExpo BlurReact Native SVGReact Native Android Widget
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[completed]★
Reiatsu

Built a zero-dependency HTTP server framework from Node.js core modules - designed a compile-time type-safe router with parameter inference, an async onion-model middleware pipeline, and built-in rate limiting, CORS, CSRF protection, and Brotli compression. Published to npm.

TypeScriptNode.jsHTTP(Node.js Core)
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[completed]★
XML Sitemap Generator

A production-grade web crawler and sitemap discovery engine with background job processing, real-time progress streaming, and intelligent CSR/SSR detection for creating SEO-compliant XML sitemaps.

Next.js 16React 19TypeScript 6PuppeteerBullMQRedisnode-html-parserServer-Sent Events (SSE)Framer MotionTailwind CSS 4Axios
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