Skip to the story
kodjokeyi
TR

HALIS / ENGINEER & INVENTOR

Web + mobile→Cloud infrastructure→Electronics

I build thewhole system.

Web and native mobile products, AWS infrastructure, and custom electronics. I design the interface, build the backend, and make the whole system work.

HALIS / A WORK IN PROGRESS

Started with electrons. Built the whole system.

01 / ORIGIN

Transistors, embedded systems, FPGA, robotics. My first building materials.

The longer story

I started with electrons, not apps.

Electronics engineering was my first way of understanding the world. Transistors, embedded systems, FPGAs, robotics: things where a bad assumption can make smoke.

Software came later. I never saw it as a separate profession—just another material I could use to make an idea real.

The ideas were never the weak part.

I built a smart-home system that reached TÜBİTAK-approved investment before the fallout of 2016 ended the company around it. Then came an EEG-controlled wheelchair, pressure-sensitive fabric for finding hardness in breast tissue, and visible-light communication for factory machines.

They did not die because the ideas were bad. They died because the inventor had no capital, distribution, or operator beside him. That took me embarrassingly long to understand.

Then I built for the web, at scale.

I helped build Leesman into a serious global platform, back when writing the software was still the hard part. It taught me how systems behave under real scale, real users, and real consequences.

Today I build web products, native mobile apps with Kotlin and Swift, and the AWS infrastructure behind them. Interfaces, APIs, data, integrations, deployment, and operating cost belong in the same engineering conversation.

The inventor is learning to operate.

Today I design the system beyond the idea and the product: distribution, capital, timing, and the operating discipline that turns a strong build into a durable company.

This chapter is straightforward: combine the inventor's technical depth with the operator's muscle, then give ambitious systems room to compound.

THINGS I MADE

From idea to working system.

ONE BUILDER / EVERY LAYER

Choose a layer 01 / 04

Interfaces people use.

From a first click to a complete product.

  • React
  • Next.js
  • Astro

THE REASON I KEEP MAKING THINGS

Find what you love
and let it kill you.

Glad I found my killer.

A circuit that wakes up. An interface that feels right. Something that works because I made it. That's my thing.

Optimistic nihilism

No purpose assigned. All the freedom to choose.

The universe doesn't owe me a meaning. I get to make one: be curious, build useful things, enjoy being here.

Stoicism

Care about the work. Loosen your grip on the outcome.

My effort, my judgment, how I treat people: mine to own. The rest is practice in letting go.

Craftsmanship

Care, even where nobody looks.

The trace on a board. The edge case in the code. The feel of a button. Making it well is part of the reward.

SAASAPPSTUDIO / NOW

Let's build something worth caring about.

Web · Native mobile · Cloud · Hardware

Halis (Kod Jokeyi) — Software, Infrastructure & Invention