Yalçıncan Ulus

Full-stack web developer based in Türkiye

Contact GitHub

Projects

Guest logins available on live demos.

Social Media Platform

TypeScript Turborepo Bun React PostgreSQL Drizzle ORM Redis S3 (minIO) Better Auth TanStack Router WebSockets Docker

Full-stack social media app built as a Turborepo monorepo with a Bun backend and React frontend.

Show details
  • Posts with image uploads via self-hosted MinIO S3, processed server-side with Sharp
  • Global and following feeds with cursor-based infinite scroll using TanStack Virtual
  • Real-time notifications delivered over WebSockets
  • Authentication via Better Auth with email/password, username, and guest login support
  • User profiles with follow/block system, bookmarks, likes, and comments
  • Admin dashboard with runtime system settings (toggle signups, guest login)
  • End-to-end type-safe tRPC-like API client; generated from the backend app type (elysiajs/eden)
  • Drizzle ORM for type-safe SQL with PostgreSQL
  • Redis caching for profiles, block lists, settings and session storage
  • Fully containerized with Docker Compose. Multi-stage builds using Turborepo prune
GitHub Repo Live Demo
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Messaging App

TypeScript Node.js Express React Vite MongoDB Socket.IO Docker Bun

Real-time messaging application with JWT auth, friend system, and live WebSocket chat.

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  • JWT authentication and protected route guards
  • Friend request system; find users by email, send/accept/reject requests
  • One-on-one conversations with cursor-based paginated message history
  • Real-time messaging via Socket.IO rooms
  • Originally Node.js, migrated to Bun runtime. Still a standard Express.js app
  • Integration tests with Bun test runner, Supertest, and mongodb-memory-server
  • Frontend built with TanStack Router, TanStack Query, React Hook Form + Zod, and shadcn/ui
GitHub Repo Live Demo
Messaging App screenshot 1
Messaging App screenshot 2
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Blog Platform

TypeScript JavaScript Node.js Express React Vite MongoDB Docker

Blog platform with a REST API, public-facing blog, and an admin CMS. Three separate apps.

Show details
  • CRUD operations for blog posts and comments across three apps (API + CMS + public blog)
  • JWT authentication and role-based access control (admin/user)
  • Server settings to toggle comment creation and user signups at runtime
  • Both frontends built with React, TanStack Router, TanStack Query, and Zod
  • CI/CD pipeline with Docker and GitHub Actions for deployment
GitHub Repo Live Demo
Blog Platform screenshot 1
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Other Projects

More things I've built and contributed to.

Multiplayer Location Guessing Game
MongoDB Node.js 1400+ games played

Multiplayer location guessing game played via a Discord bot.

  • Users can send google maps links and screenshots to start a game
  • Other players try to guess which country the location is in
  • MongoDB used to store game state and track player stats
  • D3.js and canvas used to paint incorrect guesses on world map
  • Over 1400 games played and 27.000+ guesses made by players
GitHub
GeoGuessr Account Status Checker
SQLite Hono BullMQ Web Scraping

A Discord bot that monitors GeoGuessr accounts for ban status and alerts your server when accounts get banned.

  • GeoGuessr is a popular geography game where players guess locations based on Street View images. Some players get banned for cheating, and this bot helps monitor accounts for bans.
  • Users can add GeoGuessr accounts to be monitored via Discord commands
  • BullMQ used to schedule periodic checks of account status by fetching GeoGuessr profiles
  • Users get notified in Discord when monitored accounts get banned
  • SQLite used to store monitored accounts and their status history
GitHub