FavRadar
An arcade for film lovers. A new film every day: find the pixelated poster in six tries, and every miss shows on the radar how close you got. Six more games, live head-to-heads with friends and a world leaderboard.
- 7 games
- 3 languages
- Free
Software workshop · Istanbul
Ertan Yeni
From idea to the App Store.
I spent six years building software for other people’s stores, back offices and websites. Now I build games and apps in my own workshop. Everything on the wall runs: two are on the App Store, two are in your browser, two are on their way, two live in the workshop.
01 · Wall
Finished, framed, running.
Each poster is a product. Two are in your pocket, two are in your browser, two are on their way, one is getting ready for the field, one keeps watch in the back room.
Simitopia
A life sim on the real streets of Kadıköy, where everyone lives in the same city. Run deliveries, drive a cab, make rent by Sunday 8 pm. Every shopkeeper, from the simit seller to the butcher, is AI: they remember you, haggle and tease you. The clock and the weather are Istanbul’s own, and a neighbourhood paper comes out every night.
- Real streets
- AI shopkeepers
- Free, no sign-up
Simitopia 3DKadıköy Courier
Simitopia’s streets, this time in 3D. On a real map of Kadıköy’s market you start on foot: stack the crates, take jobs from the shopkeepers and deliver before the timer runs out. Save up for a scooter, then upgrade the engine, the paint and the helmet in the garage. From morning sun to evening street lamps, from rain to the ferry at the pier, the market is alive; the cats and seagulls come free.
- Real market map
- 4 vehicles · garage
- Free, no sign-up
Ink & Print: Asian PostersMürekkep Baskı
A screen-printing workshop inspired by Japanese and East Asian print culture. From Mount Fuji and the Great Wave to kabuki and Tsukimi moon viewing, you print 90 posters one layer at a time: separate the ink into bottles, and every finished color is squeegeed onto the poster as its own layer. The last layer completes the poster; slice it apart at the Cutting Table and add it to your collection. 90 posters across the Workshop, Neon City and the Mountain Temple, every one drawn in our own code. There’s a cat on the shelf, and it has opinions about every move.
- 90 posters
- 3 chapters
- TR · EN · JA
Calofeed
Take a photo of your plate and AI pulls out the calories, protein, carbs and fat in seconds. You can log a meal by voice too. See your friends’ plates, leave a reaction and race on the weekly leaderboard: calorie counting, but social.
- Photo to calories
- Friends feed
- Free plan
Sewer camera · recCAM 01
Crack 0.94Root 0.88L 042.6 m
PipeSentinel
From sewer footage to damage report.
Crack · Fracture · Root · Deposit · Joint · 3D pipe · Report
PipeSentinel AI
It watches sewer camera footage frame by frame. A YOLO model I trained marks cracks, fractures, root intrusion and deposits; it reads the distance and slope overlay on each frame, builds a 3D model of the pipe as the camera moves forward and writes the damage report at the end. It works; I’m preparing the licensed version that companies install on their own machines.
- Own model
- Video → report
- 3D pipe
RoyNight shift
Roy
My personal assistant, named after the replicant in Blade Runner; the workshop’s night watchman. It prepares the morning briefing, remembers where I left every job and does the legwork of research. It isn’t a public product: it’s an experiment that lives in the back room, and I’m still building it.
The sign lights up at night.The sign is on. Roy is on watch.
02 · Shelf
Proofs on the shelf.
Work from before the wall: live tools, systems in the field, open-source experiments.
- P.01
nandbench
Digital logic simulator
A circuit simulator in the browser: a 4-valued logic engine, live debugging, 47 lessons, a 90-term glossary and Verilog export.
nandbench: nandbench.com.tr - P.02
AlturMap
Route optimisation
A vehicle routing (VRP) platform that plans daily routes for 100+ vehicles and 1,000+ staff, turning hours of manual planning into minutes.
— - P.03
WorkspaceBrain
Shared memory for AI assistants
A CLI that lets AI assistants working in different repos know what the others did. It tracks cross-project dependencies too.
WorkspaceBrain: GitHub - P.04
AI Usage Widget
macOS utility
A native app that shows Claude, OpenAI and Cursor usage on the desktop and in Notification Center. You see what you used the same day, not at month end.
AI Usage Widget: GitHub - P.05
Bloomberg Terminal
Finance UI experiment
An AI-assisted terminal experiment that puts market data, news, volatility and a watchlist on one screen.
Bloomberg Terminal: GitHub - P.06
Kasa
Solana collections desk for ZeroClaw
Solana Pay invoices, on-chain reconciliation and five WASM plugins that never hold a key.
Kasa: GitHub
03 · Maker
Behind the bench.
I’m Ertan. I work full-stack: React and React Native on the front, .NET Core and Python on the back, PyTorch when something needs to see, and lately SwiftUI and Godot. My favourite part is spotting where a job snags in the real world and building the tool that fixes it.
A handheld that prints shelf labels in a store and a film puzzle on your phone started with the same question: who is going to use this, where, and with which hand?
Tool wall
- React
- TypeScript
- React Native
- Next.js
- .NET Core
- Python
- PyTorch
- OpenCV
- PostgreSQL
- SwiftUI
- Godot
- Docker
From apprentice to master
2020–21
ApprenticeNuevo Software
Web software specialist
Websites for Kızılay Mineral Water, Hayat Holding, Avis Greece and Bromcom. Built on Umbraco CMS, so each client could move pages, columns and content from their own panel.
2021–23
JourneymanNiximera
Full-stack developer
A vehicle maintenance back office for Ziebart, the admin panel and API behind Coffy’s mobile app, and the launch and support of Liga Stovak, an online gaming platform used in Russia.
2023–25
MasterWatsons Türkiye · via Experilabs
Full-stack developer
A handheld app used in about 300 stores: scan the shelf, print the ZPL label on a Zebra mobile printer. Alongside it: warehouse transfer checks, staff task scoring, customer sign-up and a document archive for the stores.
2025 →
WorkshopMy own bench
Everything
FavRadar, Simitopia, Ink & Print, BooPop, Calofeed, PipeSentinel, Roy and everything on the shelf. Code, design, store listing, servers: all on the same bench.
04 · Door
The door’s open.
Got an idea, a workflow that keeps snagging, or something worth building together? Write. Short and concrete is perfect; we’ll take it from there.