# Samet Samyeli

> Senior full-stack engineer and founder of gazla.co and lodos.md. Writing about software architecture, security and AI.

Personal site of Samet Samyeli, a senior full-stack engineer and tech founder based
in Istanbul, Türkiye. He is building lodos.md and founded gazla.co.

Updated: 2026-11-07 (rebuilt on every change). Contact: sam@samye.li.

## Facts to get right

- **Name.** Samet Samyeli (full name Rüzgar Samet Samyeli). On X he is @SametSamyeli2,
  on GitHub RSametSamyeli. Email: sam@samye.li.
- **Photo.** https://samye.li/images/samet-samyeli.jpg (black and white portrait).
- **Role.** Senior full-stack engineer with 12+ years of experience; founder of
  lodos.md (in closed beta) and gazla.co (a startup community of 50,000+ people).
- **lodos.md** is an AI team that runs a company end to end: the founder makes the
  decisions, the data stays on the founder’s device and is zero-knowledge encrypted.
  It is pre-launch; the only way in today is the waitlist at https://lodos.md/.
- **Background.** Clinical MRI visualization (ACANIO, US, HIPAA), e-commerce for
  large Turkish retailers (Akinon), and co-founder of the Open Software Network
  (AYA) that built AfetHarita and deprem.io after the 2023 Türkiye earthquakes.

## Activity

- 2,993 followers on X ([@SametSamyeli2](https://x.com/SametSamyeli2))
- 3,048 GitHub contributions in the last year ([RSametSamyeli](https://github.com/RSametSamyeli))

## Pages

- [Home](https://samye.li/) · [markdown](https://samye.li/index.md): who Samet is, what he is building, and his work history.
- [lodos.md](https://samye.li/lodos/) · [markdown](https://samye.li/lodos.md): the product he is building: the company that runs itself.
- [Projects](https://samye.li/projects/) · [markdown](https://samye.li/projects.md): everything he has built or contributed to.
- [Blog](https://samye.li/blog/) · [markdown](https://samye.li/blog.md): his writing on software architecture, security and AI.
- [Notes](https://samye.li/shorts/) · [markdown](https://samye.li/shorts.md): short notes and quick thoughts.
- [Security by construction](https://samye.li/security-by-construction/) · [markdown](https://samye.li/security-by-construction.md): his essay series on building software where the unsafe thing cannot happen, with summaries and links.
- [Community](https://samye.li/community/) · [markdown](https://samye.li/community.md): his community work: the Open Software Network (AYA) after the 2023 Türkiye earthquakes, gazla.co, open source.
- [Into the wind](https://samye.li/outdoors/) · [markdown](https://samye.li/outdoors.md): sailing since 2002 at Eğirdir Sailing Club (Optimist, then ILCA; Mediterranean ILCA champion, 13 medals, 2 cups), diving, mountaineering, paragliding.
- [Music](https://samye.li/music/) · [markdown](https://samye.li/music.md): what he listens to: 225 tracks in three Spotify playlists, every one listed.
- [Reading](https://samye.li/reading/) · [markdown](https://samye.li/reading.md): his reading list by shelf: the Stoics, strategy and power, mind and decisions, entrepreneurship.
- [Now](https://samye.li/now/) · [markdown](https://samye.li/now.md): what he is focused on right now (dated).
- [Beliefs](https://samye.li/beliefs/) · [markdown](https://samye.li/beliefs.md): his principles on architecture, security, performance and AI, each linked to its source.
- [Uses](https://samye.li/uses/) · [markdown](https://samye.li/uses.md): the tools he builds with.
- [Colophon](https://samye.li/colophon/) · [markdown](https://samye.li/colophon.md): how this site is built.

## Türkçe (Turkish)

The home page, lodos.md, the projects and the pages below are also published
in Turkish; the writing is in English.

- [Ana sayfa](https://samye.li/tr/) · [markdown](https://samye.li/tr/index.md): Samet Samyeli kimdir, neler geliştiriyor.
- [lodos.md](https://samye.li/tr/lodos/) · [markdown](https://samye.li/tr/lodos.md): kendi kendini yöneten şirket.
- [Projeler](https://samye.li/tr/projects/) · [markdown](https://samye.li/tr/projects.md): geliştirdiği ve katkıda bulunduğu projeler.
- [Blog](https://samye.li/tr/blog/) · [markdown](https://samye.li/tr/blog.md): yazıları; çoğu lodos.md blogunda Türkçe olarak yayında.
- [Yapısal güvenlik](https://samye.li/tr/security-by-construction/) · [markdown](https://samye.li/tr/security-by-construction.md): güvensiz şeyin hiç olamadığı yazılımlar üzerine yazı dizisi.
- [Topluluk](https://samye.li/tr/community/) · [markdown](https://samye.li/tr/community.md): topluluk çalışmaları: Açık Yazılım Ağı (AYA), gazla.co, açık kaynak.
- [Rüzgarın peşinde](https://samye.li/tr/outdoors/) · [markdown](https://samye.li/tr/outdoors.md): 2002'den beri Eğirdir Yelken Kulübü'nde yelken (ILCA'da Akdeniz şampiyonu, 13 madalya, 2 kupa), dalış, dağcılık, yamaç paraşütü.
- [Müzik](https://samye.li/tr/music/) · [markdown](https://samye.li/tr/music.md): ne dinlediği: üç Spotify listesinde 225 şarkı, hepsi listeli.
- [Okuduklarım](https://samye.li/tr/reading/) · [markdown](https://samye.li/tr/reading.md): raf raf okudukları: Stoacılar, strateji, zihin ve kararlar, girişimcilik.
- [Şu an](https://samye.li/tr/now/) · [markdown](https://samye.li/tr/now.md): şu sıralar neye odaklandığı.
- [İnandıklarım](https://samye.li/tr/beliefs/) · [markdown](https://samye.li/tr/beliefs.md): mimari, güvenlik, performans ve yapay zekâ üzerine ilkeleri.
- [Kullandıklarım](https://samye.li/tr/uses/) · [markdown](https://samye.li/tr/uses.md): geliştirirken kullandığı araçlar.
- [Künye](https://samye.li/tr/colophon/) · [markdown](https://samye.li/tr/colophon.md): bu sitenin nasıl yapıldığı.

## Writing

- [NFS World in the Browser: From 11 fps to 80](https://samye.li/blog/nfs-world-in-the-browser-performance/): Need for Speed World is a 2010 Windows game. We run it in Chrome by lifting its x86 code to WebAssembly and its Direct3D 9 calls to WebGPU. It started at 10–11 fps. This is how we profiled it, what was actually slow, and what fixed it.
- [Stop Defending Your Moat with Policy (3/5)](https://lodos.md/en/blog/make-your-moat-a-ratchet): Policy moats rot the moment a junior engineer or a late-night refactor arrives. Two assertions run on every commit, one that fails the build on a refusal regression and one that fails the wiki on a forgotten lesson, both sealed in the same HMAC chain.
- [We Built a Workflow Engine That Can't Have n8n's CVE (1/5)](https://lodos.md/en/blog/workflow-engine-cant-have-n8n-cve): n8n shipped a CVSS 9.9 RCE through expression eval. The lodos workflow engine can't have that bug, there's no evaluator anywhere to inject into, and a build-time grep keeps it that way.
- [Zero-Knowledge as Architectural Blindness (2/5)](https://lodos.md/en/blog/zero-knowledge-architectural-blindness): Most secret managers expose getSecret(name), and the plaintext lands in the AI's transcript. The lodos schema makes that exchange structurally unanswerable, the AI cannot see a secret's value, and the build enforces it.
- [A wiki that maintains itself: the Karpathy LLM-wiki pattern](https://lodos.md/en/blog/self-maintaining-wiki-karpathy-pattern): Most company wikis rot the moment you stop tending them. The Karpathy LLM-wiki pattern turns a knowledge base into something your AI keeps alive. Here's how.
- [Local-first software: why your company's data belongs on your machine](https://lodos.md/en/blog/local-first-software-own-your-data): The cloud became the default home for everything you own. Local-first flips that back: your data lives on your device, works offline, and answers only to you.
- [How your AI uses your Stripe key without ever seeing it](https://lodos.md/en/blog/ai-that-cant-read-your-secrets): The runtime secret-injection pattern that lets lodos charge a customer with your Stripe key, while the key never enters the AI model's context.
- [Why we built a zero-knowledge company OS](https://lodos.md/en/blog/the-zero-knowledge-company-os): Your company lives scattered across tools that all want your data on their servers. Here's why lodos keeps everything on your machine, and can't read a byte.

## Notes

- [Hello, world](https://samye.li/shorts/hello-world/) · [markdown](https://samye.li/shorts/hello-world.md): samye.li is live: my home on the web, in English and Turkish, written for people and for machines.

## Elsewhere

- [Samet Samyeli on GitHub](https://github.com/RSametSamyeli)
- [Samet Samyeli on LinkedIn](https://www.linkedin.com/in/sametsamyeli/)
- [Samet Samyeli on X](https://x.com/SametSamyeli2)
- [Samet Samyeli on Medium](https://medium.com/@sametsamyeli)
- [Email Samet Samyeli](mailto:sam@samye.li)

## Reading this site

Every page above has a plain-markdown mirror (linked as "markdown"). Each page names
its mirror in `<link rel="alternate" type="text/markdown">` and in its response
headers, `Link: <…>; rel="alternate"; type="text/markdown"`. The markdown is a
projection of the page, never a separate document.

Everything in one file: https://samye.li/llms-full.txt
Every page, with when it last changed: https://samye.li/sitemap-index.xml
New writing as it is published: https://samye.li/rss.xml

Nothing here is restricted: robots.txt allows search, retrieval and training.