Eren Tutgun — builds & ships, Türkiye

Ideas are easy at sea level.

University student. Solo builder of a growing lineup of production apps — product design, native iOS, backend, deployment — every layer, one person. Two are live on real stores right now, with more already in motion. Everything worth showing you lives further down.

Begin descent

−200 m · Twilight zone

The light you start with runs out.

Every idea is fun for the first two hundred meters. Then come the edge cases, the rejected builds, the backend bills, the analytics nobody reads. This is where most side projects quietly float back up.

The ones below didn't turn back.

Keep going. It gets darker before it gets interesting.

Move your cursor — the water is already aliveThe water is already alive

−1000 m · Midnight zone

Down here, you make your own light.

No sunlight reaches production. Nothing survives on borrowed glow — you ship, or you disappear. Everything still shining at this depth built its own light source.

−2350 m · Midnight zone

Not all of them shine the same.

A few more drift past at this depth — some fully lit, some still finding their glow. Nuvelz and RentalKit are fully alight. Hearth, Slipvault, and Duesy are still rising toward "done."

−2500 m · Midnight zone

Pressure is the point.

One person, every layer: the product decisions, the native code, the backend, the deploy pipeline, the App Store review. Pressure doesn't crush you when you're the one who built the hull.

05
Products built
02
Live in production
12
Languages shipped
01
Person, every layer

Shipped — still glowing

Work / 05 products · −3800 m
01

Nuvelz iOS · App Store

Game deals & price tracking that surfaces genuinely worthwhile discounts across game storefronts — push notifications, live backend.

Live
02

Hearth iOS · Self-hosted AI

Private AI chat that talks to your own Ollama server, not the cloud. No message ever leaves your own machine.

In review
03

Duesy iOS · Subscriptions

Subscription tracking sorted by what's due soonest, wrapped in a warm "Paper Calendar" identity.

Final testing
04

Slipvault iOS · Warranty vault

A vault for your belongings — purchases, receipts, and warranty expiry dates you'd otherwise lose.

In review
05

RentalKit Web · settly.pages.dev

For renters: a room-share agreement generator, moving checklist, and country-specific rental document guides — in 12 languages.

Live

One person, every layer

About
Role — Product / Eng / Ship
Base — Türkiye
Status — Student, building daily
Method — AI-assisted, human-owned

I'm a university student who ships production software solo. I've taken real products from idea to store shelf, one at a time — across gaming, AI & privacy, personal finance, personal property, and legal documents for renters. The list keeps growing.

The first dive

Nuvelz wasn't supposed to prove anything. It was one question: could a student with no crew actually take an idea through native iOS code, a live backend, and an App Store review — with AI agents as the only other hands in the water? It surfaced. Then Hearth, then Duesy, then Slipvault, then RentalKit followed it down — separate dives on the same bet, each one testing whether one person, willing to learn every layer, can build something people actually depend on. It's not a closed list. The next dive is already underway.

Why solo

I work with AI coding agents as a force multiplier, not a crew — they turn a spec into working code fast, but they don't set the depth. The product decisions, the native mobile code, the backend, the deployment pipeline, the App Store review process: those stay mine, every time. I could have found co-founders. I didn't, because the fastest way to actually learn how software survives all the way to a real user is to be responsible for every layer yourself, with no specialist to hide behind.

This page is the same story: no framework, no template — hand-written WebGL2, GLSL and vanilla JS in a single HTML file, zero external requests.

Questions people actually ask

Did you actually build these yourself?

Every layer of them — the product calls, the native iOS code, the backend, the App Store submissions. AI agents do the typing I direct; they don't do the judgment.

Why isn't there a team?

Because building alone, every layer, is the fastest way I know to actually learn how software survives from idea to production. No specialist to hide behind means no depth I get to skip.

Are these real, or student projects?

Real. Nuvelz and RentalKit are live with actual users. Hearth and Slipvault are in App Store review. Duesy is in final testing. None of them are class assignments.

What's next?

Surface the two apps still in review, keep RentalKit's twelve languages growing, and start the next dive the moment there's room for it.

Contact / Send a signal up [email protected]

Have a product that needs to exist? I design it, build it, and get it through review. Fast, end to end, personally.