I am a full-stack developer in Istanbul. I pick the right tool for each job and deliver it end to end.
Every project on its own drawing sheet. The drawing shows what the work looks like; the title block, what it was built with.
Upload your pages; it finds the bubbles, translates the text into your language, erases the original lettering and typesets the translation back in. My own venture.
Open projectThe eyes of SpandTranslate: a model that tells bubbles, text and SFX apart on manga and webtoon pages, built from scratch, from the dataset to training.
Open projectRoot straight over the LAN — no SD tricks, no screwdriver — then a cloud-free live stream on open-source RTSP + PTZ + web. Evidence and hard-won lessons, bilingual, on GitHub.
Open projectA Windows app joining a built-in reader that keeps chapters on your own disk with a secure bridge to your machine's local model. Translation runs on your hardware instead of the cloud, and files never leave your machine.
Open projectMy history lives in one repository. Scroll down and you read it commit by commit; the last line is not written yet.
While still in school I took my first outside jobs. For the first time I wrote what I had learned for a real client.
Let's write the next line together. Tell me about your project or idea below.
Not every job is a website. Some are a publishing platform, some a model we trained ourselves, and one was a camera whose cloud had shut down.
Less one-page sites, more systems people run a business on: a publishing core that spins up several sites from one codebase, a review system that runs from a card on the table to the owner’s panel. The back end is mostly Laravel; the front end is Vue + Inertia or Next.js, depending on the job.
I built a pipeline that translates a manga chapter in one click: our own model finds the bubbles, a language model translates with the chapter’s context, GPU workers erase the original lettering and repair the art. Workers scale up as jobs arrive and back down when the load drops.
When off-the-shelf models fell short, we trained our own: about 75 thousand pages collected, labelling rules written down, each generation trained from scratch on data labelled by the one before and measured on our own test set. The rule is simple: no training until the dataset is clean.
I bring back devices that became junk when their maker walked away. On a camera whose cloud had shut down, I decoded a factory-test service byte by byte, got root over the network and freed it from the cloud with an open-source RTSP stream.
I hand repetitive work to agents: publishing posts across several sites, sharing on social media, replying to business reviews by a set of rules. I write the rules and decide where a human has to approve.
The most honest way to describe myself is a change history. The crossed-out lines were true once; the ones beneath them are true today.
Hi, I am Onur. I live in Istanbul.
I started writing code in 2021 next to my brother Yusuf Demir: no memorising, everything from the ground up.
I build pages with HTML and CSS.
I write the back end with PHP and Laravel and the front end with Vue.js or Next.js; I pick the tool by the job.
I use what I learn in my own experiments.
I worked the whole time I studied; since 2023 I have been writing what I learn for real clients. School gave me the diploma, work gave me the craft.
I am an intern at KodeTrust.
I work at KodeTrust as a full-stack developer, and I study Computer Programming at Istanbul Aydın University on the side.
I am building my own venture, SpandTranslate; it is also how I stepped outside the web and learned to collect data and train models.
When I finish a job, I write down what I learned.
The most expensive lesson we learned while training a detection model: measurement first, model second.
How I rooted an app-abandoned Wi-Fi camera straight over the LAN, brought it back to life as a local live stream — then bricked it while making it permanent. A true four-day story.
Tell me in a few sentences what you want to build. I usually reply the same day, the next day at the latest.
Right now I am open to new work: freelance projects, remote or on site in Istanbul. A web platform, a model to train or a stubborn device; whichever it is, write or call.