I build private AI and knowledge systems you own.
10+ years building software professionally — and a whole sovereign lab on one machine in a 44 m² apartment in Romania: a self-hosted library, a local AI agent and a live threat-intelligence platform. Nothing leaves the hardware.
What I can do for you
Systems that belong to you, not a vendor
Plain terms: I design and run the kind of platforms teams usually rent by the month — except these run on hardware you control, and I understand every layer end to end.
Private AI on your own hardware
A capable AI agent and model stack that never sends your data to anyone's cloud — it plans, uses your tools, and checks its own work.
See the agent → 📚A messy archive, made searchable & provable
Turn decades of scattered files into a catalogue you can search by meaning, ask questions of, and verify file-by-file.
See the library → 🛡️Security monitoring & threat intelligence
Honeypots, intrusion detection and a forensic pipeline that turns raw attacks into attributed, sourced intelligence.
See it live → ☸️Kubernetes & platform engineering
A whole production stack on one node — SSO, observability, backups, networking — automated and documented.
See the platform →Proof, live
Not a pitch deck — a running system
These numbers are read from the machine itself, not typed by hand.
Refreshes from the live system every 30 minutes.
Featured work
Three flagships, built from scratch
A library that reads, answers and proves every page
72,304 works curated by meaning. Ask it questions, read in your language, and verify any file against a signed ledger anchored in Bitcoin — plus 400 offline reference books built into search.
Explore the library → 🤖 lsn-agent-v3An AI engineer that checks itself
Proposes a plan, waits for your yes, works through ~550 tools, and flags its own unsupported claims. 894 tests.
Meet the agent → 📡 Live FeedEvery attack becomes intelligence
A home honeypot and web sensors, enriched and linked into a graph of relationships and published dossiers.
Watch it live → 🛡️ DefenseFour layers, by hand
Router, community IDS and app auth as one system — bans learned here are shared back to a global community.
See the defense story → 🔐 The Access EngineAccess control that understands the cluster
A from-scratch SSO platform: a visual access matrix, service auto-discovery and a GitOps audit trail.
Read the deep-dive →The human behind it
44 square metres. Infinite output.
A small apartment in a village near Iași — two kids, four cats, and a datacenter. I build things: infrastructure, furniture, music, sentences. If it's broken, I fix it; if it doesn't exist, I make it.
- Sovereign AI & security lab
A self-hosted library, a local AI agent and a live threat platform — on one machine, no cloud.
- Professional software engineering
A decade building and running production software and data platforms.
- Builder & writer
Carpentry, music and nearly 200 published essays in Romanian and English.
More about the person and the machine
I also write poetry and philosophical essays — because infrastructure for the mind and infrastructure for machines aren't so different. Every mistake is a lesson; knowledge never dies.
Beyond the screen: harmonicas, guitars, handpan, saxophone, drums and an 800 W hi-fi so the music never ends; a full carpentry setup for wood and metal; and a disaster-ready household with its own food, water, heating and power.
The machine: a Dell Precision Tower 7910 — dual Xeon E5-2699 v4 (88 threads), 503 GiB ECC RAM, an AMD Radeon AI PRO R9700 GPU, NVMe arrays and a Synology NAS, a MikroTik CCR1009 router, a 14 kWh battery with generator and solar, running Ubuntu 24.04 and K3s. It serves 7 AI models locally and runs 67 Kubernetes namespaces.
Also known as: Cristian Lișneanu · Cristian Lisneanu · Dumitru-Cristian Lișneanu.
Have a project?
Let's build something that's yours.
Private AI, a searchable knowledge base, a security stack, an infrastructure you actually own — I build these from a village apartment. Imagine what I can build with real resources.
Or email lisneanucristian@shuffle-on.com or lisneanucristian@gmail.com · Iași County, Romania 🇷🇴 · available for remote work worldwide.