01 / 05Live now
AI product scanner
Health Score
Scan a label, a barcode or a photo and get a 0–100 health score with every ingredient explained. Live on the App Store and Google Play.
ReactGemini APIiOSAndroid
Open case study10 real screens
ERENSEMİH YILDIZ
Portfolio — 2026
Drag the letter · click to scatterScroll to explore
I build the apps I wish already existed.
Second-year computer engineering student at Pamukkale University. I ship real software — an AI app on the App Store and Google Play, desktop apps in Tauri and Rust, and tools built around hard constraints.
Manifesto
Everything I make starts with a small annoyance. A series I paused on one computer and couldn't pick up on the other. Games scattered across five launchers. An ingredient list nobody could read. I fix it for myself first — then I polish it and ship it for everyone.
Selected work
12Things I built
02 / 05In progress
The desktop player, in my pocket
Resonance Mobile
Resonance on Android — the same database, the same recommender, the same cloud sync — with lock-screen playback and a native Kotlin module that finds the audio itself. The one I use every day.
React NativeExpoKotlinSQLiteSupabase
Open case study9 real screens
03 / 05Shipped
Paste a link, keep the video
All in One Downloader
Paste any link and it lists every video on the page, with the size of each quality before a byte is fetched — then downloads them over several connections at once. The desktop app I open every day, on macOS and Windows.
ElectronReactTypeScriptNode.jsyt-dlp
Open case study5 real screens
04 / 05In progress
Local-first music player
Resonance
A music player where playlists earn karma and a small, explainable recommender learns what you actually listen to — and when.
Tauri 2RustTypeScriptReactSQLite
Open case study8 real screens
05 / 05In progress
One library for every store
Atlas
Games, playtime and achievements from several stores in one fast desktop app. Everything stays on your machine.
Tauri 2RustTypeScriptReactSQLite
Open case study6 real screens
Atlas
Atlas
All projects12 projects
- 01Health ScoreLive · 2026AI product scannerLive2026
- 02Resonance MobileIn progress · 2026The desktop player, in my pocketIn progress2026
- 03All in One DownloaderShipped · 2026Paste a link, keep the videoShipped2026
- 04ResonanceIn progress · 2026Local-first music playerIn progress2026
- 05AtlasIn progress · 2026One library for every storeIn progress2026
- 06NibbleShipped · 2026A speed test that sips your dataShipped2026
- 07CNC Log SystemIn progress · 2026Industrial machine loggingIn progress2026
- 08Show TrackerIn progress · 2026Where was I?In progress2026
- 09ForgericAlpha · 2026Forge + Fabric, togetherAlpha2026
- 10Claude Skill LoaderShipped · 2026No terminal requiredShipped2026
- 11LinkPadShipped · 2026Save, tag, findShipped2026
- 12Circle SurvivorShipped · 2025A game in CShipped2025
Capabilities
00 / 04What I work with
01
Languages
- TypeScript
- Python
- Rust
- Java
- C
- SQL
02
Apps & interfaces
- React
- React Native
- Tauri
- Electron
- Tailwind
03
Data & backend
- SQLite
- Supabase
- PostgreSQL
- FastAPI
- REST
04
Craft
- Offline-first
- Cross-platform
- App Store & Play
- AI-assisted dev
Eren Semih YıldızDenizli, Türkiye
About
Hi, I'm Eren
I study computer engineering at Pamukkale University and I am in my second year. I started writing software the way most people start fixing a bike: something annoyed me and I wanted it to stop.
Right now
The whole story- Second year of Computer Engineering at Pamukkale University
- Building Health Score and Resonance
- Looking for a software engineering internship
Small team of one. Real releases.
00
stores Health Score is live on
00
projects on this page
00
platforms shipped to — macOS, Windows, Android, iOS
00
languages Health Score speaks
Trajectory
So far
- 2026
Health Score on the App Store
App Store & Google Play
First app on both stores, built and released alone — Android first, then iOS.
- 2026– present
CNC Log System
A CNC shop
Logging for Heidenhain TNC 640 machines at the shop my brother works at; simulator-tested so far.
- 2025– present
B.Sc. Computer Engineering
Pamukkale University
Second year. First-year project: Circle Survivor, a game in C and raylib.
Let's build something
Contact
Internship, freelance, or just an idea you want to talk through. WhatsApp is the fastest way to reach me.