Open for Advisory & Collaboration · Cairo & California

Applied AI, graph retrieval & production ML, distilled from first principles.

I'm Omar — a data scientist and enterprise AI architect with 26+ years across fintech underwriting, telecom, EDA and distributed software. This site is my working library: six illustrated books, six free video courses, empirical GPU field notes, and 30+ engineering cheatsheets.

Career Pedigree // HCLTech CaaStle Tribal Credit Mentor Graphics IBM Lucent
01 // Published Monographs

Six books, illustrated & hands-on.

Full Catalog & Editions →
Cover of The AI Transformation Consultant
New · Nov 2026 203 pp Free Course

The AI Transformation Consultant

What works, what fails, and how to lead the engagement — 10 cited chapters from LLM fundamentals to boardroom strategy and an interview toolkit.

Cover of LLM Evaluation & Reliability Engineering
New · Oct 2026 460 pp 20 Chapters

LLM Evaluation & Reliability Engineering

Evals, observability, and AgentOps for developers who own what happens in production — every chapter opens with a real incident and ships runnable Python.

Cover of The Camera Composition Playbook
Visual Workbook 325 pp · 60 Rules

The Camera Composition Playbook

Photography composition in 60 visual rules: weaker-vs-stronger frame comparisons, 10-minute field exercises, and when to deliberately break the rule.

Cover of A Gentle Introduction to Microservices for Python Developers
Sep 2026 379 pp · 72 Diagrams

Microservices for Python Developers

Follow ShopFlow from a single Django monolith to FastAPI microservices deployed across AWS and Google Cloud, paired with a free 4-module video course.

Cover of Advanced GraphRAG & Knowledge Agents
Jul 2026 Paperback & Kindle

Advanced GraphRAG & Knowledge Agents

Beyond flat vector search: ontology construction, Microsoft GraphRAG & DRIFT, LightRAG, HippoRAG, and multi-hop knowledge agents across eight modules.

Cover of Diagrams as Code
195 pp Mermaid · PlantUML · D2

Diagrams as Code

Version-controlled architecture diagrams and dynamic documentation with Mermaid, PlantUML, D2, AsciiDoc, Marpit, and generative LLM pipelines.

02 // Architecture of the Site

Four libraries, one engineering standard.

Quick-lookup syntax sheets for daily coding, empirical benchmarks from a local 24 GB GPU rig, structured video courses, and full-length books.

Library A · Reference 30+ Cheatsheets

Engineering & ML Cheatsheets

Dense, printable multi-column command & API references with live command filtering, one-click copy, and A4 print layout — covering Scikit-learn, PyTorch, SQL, Docker, LangChain, PEFT, and AI agents.

Browse all 30+ reference sheets →
Library B · Long-Form 14 Field Notes

GPU Field Notes & Blog

Empirical capability tours and architecture explainers written from actually running, quantizing, and benchmarking open-weight models on a single 24 GB RTX 4090.

GraphBLAS LightRAG & LinearRAG GGUF / FP8 / 1.58-bit Diffusion & VLMs OpenWiki
Read the technical journal →
Library C · Video Curriculum 6 Courses · 49 Modules

Free Structured Video Courses

Self-contained 15–35 minute modules on AI strategy for consultants, reinforcement learning with Stable-Baselines3, GraphRAG Parts 1 & 2, LLM context & agent memory, and Python microservices.

AI for Consultants Reinforcement Learning GraphRAG I & II Agent Memory
Open the course syllabus →
Library D · Print & Digital 6 Books · Amazon & Payhip

Illustrated Technical Books

Friendly, visual, rigorously cited guides that pair plain-English mental models with runnable code, architecture diagrams, and companion YouTube courses.

AI Transformation LLM Evals & AgentOps Microservices Camera Composition
Explore all six editions →
03 // Recently Published

Field notes & benchmarks.

OpenWiki AI documentation agent illustration AI Agents · New
July 2026·LangChain · DeepAgents

OpenWiki — the AI agent that writes your docs (and turns Gmail into a second brain)

Sandboxed docs-only repo documentation plus 100 real Gmail threads distilled into a terminal-queryable personal wiki, with SHA-256 snapshot guardrails.

FalkorDB sparse matrix graph illustration Graph Databases
July 2026·GraphBLAS · openCypher

FalkorDB, explained — the graph database that's secretly linear algebra

How storing graphs as sparse matrices turns traversal into matrix multiplication, paired with native vector search for RAG and agent memory.

12 Illustration Styles in Krea 2 Style Atlas
July 2026·Krea 2 Turbo · RTX 4090

12 Illustration Styles Worth Generating in Krea 2

Twelve master illustrator aesthetics reproduced locally on one 24 GB 4090 using pure visual-language cues rather than artist names.

Krea 2 quantized GGUF on RTX 4090 Quantization
July 2026·12B DiT · Q6_K GGUF

Krea 2 on a single RTX 4090 — quantizing a 12B image model with GGUF

Fitting a 12B diffusion transformer into ~10.6 GB under Pop!_OS: ComfyUI isolation, encoder gotchas, and a 16-style quality audit.

Unlimited-OCR document parsing benchmark Document VLM
June 2026·SGLang · English & Arabic

Unlimited-OCR, hands-on — long-horizon document parsing on a 4090

Near-exact English Markdown & tables vs 1890s historical Arabic pages, plus fixing runaway generation loops with image_mode=base.

LightRAG dual-level graph retrieval GraphRAG
June 2026·GPT-5 · Qdrant

LightRAG — fast graph-RAG with GPT-5 + Qdrant, hands-on

Knowledge-graph indexing and dual-level retrieval without community-traversal bills, plus incremental updates and real setup fixes.

LinearRAG Tri-Graph architecture ICLR 2026
June 2026·Zero-Token Indexing · PPR

LinearRAG — relation-free GraphRAG, hands-on a 4090

Building a Tri-Graph with zero LLM tokens via NER & embeddings, then single-pass multi-hop retrieval with Personalized PageRank (12/12 accuracy).

Boogu-Image 10B Edit and Turbo Unified 10B
June 2026·Apache-2.0 · Diffusers

Boogu-Image — the Edit and Turbo models, hands-on a 4090

Instruction photo editing and 4-step Turbo generation on 24 GB VRAM: group offload, OOM walls, and identity-CFG experiments.

Microsoft Lens FP8 DiT 1440px FP8 DiT
June 2026·torchao · 1440px Native

Lens — quantizing the DiT to run 1440 without offload on a 4090

Breaking past the 1024px bf16 OOM ceiling on Microsoft's 3.8B model + 4-bit GPT-OSS-20B encoder using on-GPU FP8 quantization.

Qwopus 3.6 Multi-Token Prediction speedup 1.98× Speedup
May 2026·llama.cpp · MTP GGUF

Doubling Qwopus 3.6 on a single RTX 4090 — Multi-Token Prediction

1.98× average throughput (2.21× peak on math) on a 27B GGUF model — why Ollama rejected it and the exact production llama-server recipe.

Cheatsheet · Process Mining
patients %>%
  filter_activity_frequency(percentage = 0.8) %>%
  process_map(performance(median, "days"))
Reference Card·R · bupaverse

bupaR — Business Process Analytics & Process Mining

Event logs, frequency & performance process maps, trace filtering, dotted charts, and conformance workflows on one sheet.

Cheatsheet · Agentic AI
agent = Agent(name="Triage",
  handoffs=[billing_agent, tech_agent],
  input_guardrails=[safety_check])
Reference Card·Python · Agents SDK

OpenAI Agents SDK — Tools, Handoffs, Guardrails & Tracing

Complete multi-agent orchestration reference: Runner loops, structured outputs, function tools, handoffs, and trace instrumentation.

05 // About the Author

Three decades shipping software & intelligence.

I'm a Senior Enterprise AI Architect and Chief Data Scientist alum with 30+ years in technology and 9+ years leading machine learning, fintech credit underwriting, recommendation architectures, and production LLM agents.

Across roles at HCLTech, CaaStle, Tribal Credit, Reveel, TA Telecom, Mentor Graphics, IBM, and Lucent, my work has centered on turning complex math and model architectures into reliable, auditable systems — and writing the field guides I wished existed.

Current Focus
Enterprise Multi-Agent Systems, Evals, GraphRAG & Local GPU Inference
Credentials
Anthropic Claude Certified Architect · Six Sigma Black Belt · MBA
Intellectual Property
US Patent App. 20160189178 — Predictive Recurring-Revenue Churn
Languages
English (Fluent) & Arabic (Native — Bilingual Courses)