Production systems, case studies and side projects — newest and most substantial first.
01
Auraly-AI is a mood-based music recommendation product built by Mustafa Erhan Portakal at Vimof Studios, which interprets a listener's mood with Google Gemini and turns it into a playable Spotify playlist. It runs as a TypeScript monorepo of four applications — a NestJS API, a Next.js web app, an admin panel and a React Native mobile app — and is live at auraly-ai.com.
TypeScript · NestJS 11 · Next.js 15 · React Native (Expo) · MongoDB · Mongoose 8
02
maisonmeda.com is a live e-commerce platform Mustafa Erhan Portakal built for a boutique client, covering a customer storefront, an admin panel and the API behind them. It is a Turborepo monorepo holding a Next.js 16 storefront and a NestJS API, with Trendyol marketplace synchronisation and iyzico payments, and has been in production since April 2026.
TypeScript · Turborepo · Next.js 16 · NestJS · Prisma · PostgreSQL
03
The Union Management Platform is a management system Mustafa Erhan Portakal built for Demokratik Sağlık-Sen, a health workers' union, covering member records, dues and deduction documents, approval flows, accounting, content and reporting. It comprises 30 backend modules over 40 relational data models, and was packaged with Docker Compose and installed on-premise on the client's own infrastructure.
TypeScript · NestJS 11 · Prisma 6 · PostgreSQL 16 · Redis · BullMQ
Read the case study →No public link — deployed on-premise
An English diary platform that rewrites your entry at the IELTS level you are aiming for.
React · Vite · Tailwind CSS · NestJS
A polyglot microservice system built to learn gateway architecture properly.
Nginx · NestJS · Django · FastAPI
A self-hosted WhatsApp messaging API with a session-monitoring panel.
Node.js · Express 5 · Baileys · Next.js
A football team management panel, built as the closing project of the BRM Bilgisayar internship.
C# · ASP.NET Core 8 · Entity Framework · Microsoft SQL Server