About · Lișneanu Dumitru-Cristian

I build systems you own.

I'm a DevOps and platform engineer near Iași, Romania. For ten years I've kept a large research platform running while it changed underneath its users. At home I built a sovereign lab on one machine: local AI, a research library that can prove every file, and a live threat-intelligence platform. From that library I write books.

72,312Works in the library
123,123Files sealed in Bitcoin
817Public dossiers
8Local AI models

Figures refresh from the live system every 30 minutes.

What I do

Four crafts, one machine.

DevOps & platform

Ten years on a research-intelligence platform built from many interdependent parts: deployments, legacy-to-cloud migrations, Kubernetes and Amazon EKS, and access management across more than 30 AWS accounts. My specialty is the overview: knowing what a change will break three teams away.

Sovereign AI

Local language models behind one router, and an agent that plans, works through tools and checks its own answers. No cloud bill, no data leaving the room.

Meet lsn-agent-v3 →

Security & threat intelligence

Honeypots, behavioural detection, blocking at the edge and verdicts shared with a community of defenders, turned into public, signed dossiers.

See the defense →

Knowledge systems

A private research library with full-text and semantic search, OCR, study guides and a provenance ledger, so every file can be verified.

Explore the library →
The path

From the server room to the agent.

Every layer learned by running it in production.

  1. 2005–2010Mathematics and computer science, then a master's in modelling and simulation in physics, at Alexandru Ioan Cuza University in Iași.
  2. 2011–2016System administration, then Linux and VoIP for large multi-client call centers: telephony, routers and switches, mail, databases, data-center hardware, 24/7 operations.
  3. 2016–todayDevOps engineer on a research-intelligence platform, through three eras: containers, Kubernetes and EKS, and now AI and agentic infrastructure.
  4. NowA sovereign lab on one machine, public threat intelligence, and books written from my own library.
Books & writing

Written from the library.

Published · free to read

Religions, Cults and Power

From Zoroaster and Mithra to the Singularity. A 174-chapter study, in 17 parts, of how belief and power grew together. Every claim is credited to its source, and where scholars disagree, both sides are shown. CC BY-SA 4.0.

Coming soon

SHTF vs STFU

For each crisis of the last hundred years: who warned, what the official line said, what people actually lived, and what the record shows. Fifty-nine chapters on the gap between them.

On this site

The Human Document

A portrait in ten chapters, with its companion written by the machine.

Read it →
Work together

Need something like this for your own team?

Platform and DevOps work, private AI on your own hardware, an offline library, a threat-intelligence pipeline. I build and run these. If any of it would help you, let's talk.

Personal site. Research and opinions are my own.