Real Projects, Built and Shipped
Each case study names the client and covers the problem, what was built, the technology and the current status, with screenshots or video where the work can be shown.
SPSTARPLAST Manufacturing ERP
The challenge: An Istanbul manufacturer of insulation anchors needed one system for sales, production, inventory, quality, shipping and purchasing.
What was built: An ERP on Next.js 15 and Supabase: 16 modules and 50+ screens, integration with the company's LOGO ERP, a company-wide activity feed and per-user access control.
Where it stands: In production. Handed over in September 2026, when the code, database and hosting moved to the client's own accounts with no downtime.
View case studyAgentic OMR for Erkan Ulu Orta Okulu
The challenge: An Istanbul middle school needed answer sheets read from phone photos and scans, across different layouts, lighting and hand-made marks.
What was built: A pipeline in which YOLO finds the answer rows, a custom-trained open-source vision-language model served with vLLM reads the marks, and low-confidence reads go to a teacher for review.
Where it stands: In production, with results flowing into the school portal.
View case studyProgrammatic Google Ads — Dr. Ayberk Akcay
The challenge: A healthcare practice with many services and locales needed more keywords, ads and landing pages than anyone could keep up by hand.
What was built: An engine on the official Google Ads API that generates campaigns, ad groups, keywords and ads from templates, with bidding rules, budget pacing and change logs.
Where it stands: Active: 2,000+ ads across 1,000+ ad groups, on an account spending over $1M a year.
View case studySağlama — Source-Linked Participation-Finance Ratios
The challenge: The official participation-finance list is updated once a period while listed companies' balance sheets change every quarter, and investors need to see how each ratio was worked out.
What was built: A free public site, ratio engine and read-only API that recompute three ratios for each measured Borsa İstanbul company from its own financial statements and notes, with the source document, date and method version beside every number. Built solo by Savaş Tutumlu.
Where it stands: Live since July 2026, with 220 companies measured as of October 2026. A forecast frozen before the October 2026 index review matched 238 of 241 calls.
View case studyEv Çalışması Merkezi — AI Homework Platform
The challenge: A private middle school in Istanbul needed handwritten homework marked and explained question by question, with a whole-class view for teachers.
What was built: An AI homework platform that marks phone photos or PDFs against the teacher's answer key with partial credit, follows mistakes with AI-generated practice questions and lets teachers review the AI's verdicts. A teacher's override always wins.
Where it stands: In use at the school since May 2026; grades 5–8 started the 2026–27 school year on the platform.
View case studyGelgit Adası — A 3D Island Game Where Homework Fuels the Boat
The challenge: Make homework effort, including going back over mistakes, worth something to students, while keeping play time capped and out of school hours.
What was built: A 3D WebGPU island game for students' iPads: right answers, watched solution videos and genuine practice fuel the boat, with a server-authoritative economy, capped play time and no ads, purchases or chat.
Where it stands: In production since 26 Sep 2026 as a teacher-only alpha, two days after the build started. Opening to students is planned.
View case studyOtocropper — Offline Question Cropper
The challenge: Teachers needed scanned question-bank PDFs split into one image per question, named and filed the way the book is printed, on their own Macs.
What was built: A fine-tuned RT-DETRv2 detector paired with Turkish OCR in a notarized SwiftUI app that runs fully offline, with no Terminal, Python or internet connection needed.
Where it stands: 97.1% recall and 96.9% precision at IoU ≥ 0.9 on a held-out 238-page book; in use by the school's teachers since September 2026.
View case study