I design and ship production-grade systems end-to-end — from architecture and backend infrastructure to polished user interfaces across iOS, Android, Flutter, and the web.
I run TunaSoft Yazılım with Duygu Durmuş, delivering commercial software across real estate, fintech, e-commerce, gaming, AI tooling, and privacy infrastructure. I ship complete products — architecture, backend, mobile, web, and deployment — with a strong bias toward clean domain modeling, operational robustness, and long-term maintainability.
- Go backend — modular monoliths, DDD, clean architecture, event-driven systems, webhook idempotency
- iOS / macOS — Swift, SwiftUI, Network Extension, SceneKit, Clean Architecture, Coordinator pattern
- Cross-platform mobile — Flutter (iOS · Android · macOS · Desktop), React Native + Expo
- Payments & subscriptions — Stripe, iyzico, webhook idempotency, device binding, recurring state machines
- VPN & networking — WireGuard, VLESS / XRay, sing-box, Network Extension, Android VpnService
- AI & LLM — agent systems, RAG pipelines, LLM orchestration, semantic search
- Real-time systems — SignalR, WebSockets, multiplayer servers, live auctions
- Admin panels & internal tools — React, TypeScript, TanStack Query, low-code platforms
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Full-stack real estate and land-sales platform with a live online auction system. WireGuard VPN client for Apple platforms — iOS, iPadOS, macOS with Network Extension and Keychain integration. Universal proxy infrastructure — WireGuard, VLESS, XRay, Shadowsocks, Hysteria in a single binary. |
🤖 openclawPersonal AI assistant — open-source agent system with extensions for 100+ services. 🧠 badem-aiAI Application Builder Platform — ship full-stack apps with AI. Production-ready iOS eCommerce application with SwiftUI, Firebase, and Stripe. |
| Repository | Description | Stack |
|---|---|---|
| openclaw | Personal AI assistant with extensible agent system | TypeScript |
| sim | AI workspace — build, deploy, and manage AI agents | TypeScript |
| txtai | All-in-one AI framework for semantic search and LLM orchestration | Python |
| awesome-llm-apps | 100+ AI Agent & RAG applications collection | Python |
| badem-ai | AI Application Builder Platform — full-stack apps with AI | TypeScript |
| Repository | Description | Stack |
|---|---|---|
| vpn-apple-kit | WireGuard VPN client for Apple platforms (iOS/iPadOS/macOS) | Swift · NetworkExtension |
| proxy-platform | Universal proxy platform — WireGuard/VLESS/XRay/Shadowsocks | Go |
| quickshare | Cross-platform local file sharing application | Flutter · Rust |
| Repository | Description | Stack |
|---|---|---|
| clean-go-starter | Clean architecture starter template for Go applications | Go |
| ddd-workout-kit | Domain-Driven Design example in Go | Go |
| go-cookbook | Collection of Go recipes and starter templates | Go · Fiber |
| identity-hub | Authentication and identity management server | Go |
| go-semver | Semantic versioning utilities written in Go | Go |
| Repository | Description | Stack |
|---|---|---|
| lowcode-studio | Low-code platform for building internal tools and applications | TypeScript · Java |
| react-internal-tools | React-based framework for internal tools and admin panels | TypeScript |
| admin-framework | Frontend framework for building admin panels and B2B apps | TypeScript |
| tunasoft-devbridge | In-browser dev playground — WebContainer runtime, injection engine, session vault | TypeScript |
| Repository | Description | Stack |
|---|---|---|
| RustyParser | Generic compile-time parser generator and pattern-matching library | Rust |
| ruast | Printable and modifiable Rust AST | Rust |
| rand_seeder | Universal random number seeder based on SipHash | Rust |
| TunaTools | Collection of Rust utility tools | Rust |
| Awesome-Rust-Checker | Curated list of Rust checkers and linters | Python |
| Repository | Description | Stack |
|---|---|---|
| flutter-toolkit | Collection of Flutter plugins for platform integrations | Dart |
| flutter-desktop-kit | Window management plugin for Flutter desktop apps | C++ · Dart |
| Flutter-food-delivery-ui-kit | Production-ready Flutter UI kit for food delivery apps | Dart |
| Flutter-home-service-ui-kit | Premium Flutter UI kit for on-demand home service platforms | Dart |
| home-service-application-ui-kit | Flutter UI kit for on-demand home service apps — Material 3 + Clean Architecture | Dart |
| Flutter-tech-commerce-ui-kit-main | Tech commerce demo app built with Flutter | Dart |
| flutter-facebook-responsive-ui | Pixel-perfect responsive Facebook UI clone across Web/iOS/Android | Dart |
| learning-journey-mobile-application | Full-stack learning tracker — React Native (Expo) frontend with Python backend | React Native · Python |
| Repository | Description | Stack |
|---|---|---|
| eCommerce | Production-ready iOS eCommerce app — SwiftUI, Firebase, Stripe | Swift · SwiftUI |
| iOS-Clean-Architecture-Movies | Event-Driven Coordinator pattern with TMDb API | Swift · SwiftUI |
| GlobeDraft-iOS | Interactive 3D Earth exploration iOS app — SwiftUI + SceneKit | Swift · SceneKit |
| globe3D | Interactive 3D globe visualization for iOS | Swift · SceneKit |
| TravelJournal-SwiftUI | iOS app for documenting travels with photos, locations, and memories | Swift · SwiftUI |
| Repository | Description | Stack |
|---|---|---|
| net-tapu-platform | Full-stack real estate & land sales platform with live online auctions | TypeScript |
| net-tapu-2 | Real estate & online auction platform — alternative architecture iteration | TypeScript |
| net-tapu-3 | Real estate & online auction platform — alternative architecture iteration | TypeScript |
| freexa | Modern full-stack freelancer marketplace inspired by Upwork & Fiverr | JavaScript |
| wisiva | Production-ready Laravel 10 app — multi-gateway payments, social auth | PHP · Laravel |
| Repository | Description | Stack |
|---|---|---|
| okey-server | Real-time multiplayer game server for classic Okey — ASP.NET Core + SignalR | C# · SignalR |
| okey-multiplayer | Unity-based multiplayer client for Okey | C# · Unity |
| gameserver | .NET C# multiplayer game server with real-time state sync via SignalR | C# · SignalR |
| Repository | Description | Stack |
|---|---|---|
| Digital-Synth | Browser-based digital synthesizer on the Web Audio API — neon/cyberpunk UI | JavaScript |
| Fireworks-Launcher | HTML5 Canvas fireworks physics simulation — zero dependencies | HTML · JavaScript |
| Solar-System-Explorer | Interactive Solar System visualization | CSS · JavaScript |
| Repository | Description | Stack |
|---|---|---|
| tunasoft-website | TunaSoft Yazılım — full-stack software agency website | HTML · CSS |
| designrush-soft | Corporate website hand-built for DesignRush brand | HTML · CSS |
| Repository | Description | Stack |
|---|---|---|
| better-assert | Lightweight assertion library for JavaScript | JavaScript |
| LibCST | Forex technical analysis platform (merged) | JavaScript |
Selected client engagements and commercial iterations — architecture and implementation delivered by TunaSoft Yazılım.
| Repository | Domain |
|---|---|
| app-ihaleci | Auction / bidding application |
| odeme | Payment processing integration |
| rfq-4 | Request-for-quotation workflow platform |
| freelancer | Freelancer marketplace iteration |
| freexa-1 · freexa-new | Freelancer marketplace iterations |
| forex · forexx · forex-frontend-tasar-m | Forex trading platform iterations |
| griensoft · griensoftweb | Griensoft corporate product |
| gozde-platform | Custom SaaS platform delivery |
| ozmengida | Özmen Gıda corporate web app |
| berber · berber-2 | Barbershop appointment & management app |
| wedu | Education platform prototype |
| dogumgunu | Birthday / event-planning application |
| mobile | Mobile application prototype |
| portf | Portfolio site iteration |
| Repository | Description |
|---|---|
| g20-tez | Academic thesis / research paper source (LaTeX) |
Languages
Frameworks & Runtimes
Infrastructure & Tools
Available for freelance engagements, consulting, and long-term collaborations.
📧 info@tunahancosgun.dev · 🌐 tunahancosgun.dev · 📅 Book a call · 🏢 TunaSoft Yazılım
Tunahan Coşgun & Duygu Durmuş — TunaSoft Yazılım