22 chapters, zero to deep on every tool — terminal setup, database architecture, deployment pipelines, agentic workflows, voice AI, code-review automation, and the geopolitics most guides won’t touch. Real configurations, real benchmarks, real opinions from a practicing CEO. No sponsors, no affiliate links.
Publication date
August 15, 2026
Category
Business & Artificial Intelligence
Publisher
Sub-Etha Press (imprint of Icemint LLC, Wyoming)
Rights
World. Foreign rights: hello@subethapress.com
Ebook · Kindle
$9.99
979-8-950624-02-5
Paperback
$24.99
979-8-950624-01-8
Hardcover
$39.99
979-8-950624-00-1
About the book
Artificial intelligence is no longer a tool for specialists. It is becoming the operating system for modern organizations. Yet most teams never move beyond experimentation. They write prompts, test chatbots, automate a few tasks, and wonder why transformation never arrives.
42: The AI Builder’s Stack provides a practical framework for understanding how AI capabilities build on one another, from foundational prompting to workflows, automation, knowledge systems, agents, and organization-wide transformation. Rather than focusing on fleeting tools or today’s trends, it equips practitioners with enduring principles for designing systems that create lasting value.
Whether you’re an executive, product leader, consultant, founder, or technical builder, this guide helps you separate genuine opportunities from hype, understand where each layer of the AI stack fits, and make better decisions as the technology evolves. The future won’t belong to the organizations with access to the most AI tools — it will belong to those who know how to connect them into systems that learn, scale, and compound.
42: The AI Builder’s StackPage 1 of 2
Sub-Etha Press · Press Fact Sheet
About the Press
Sub-Etha Press is an independent publishing imprint for practitioners who build. We believe the best technical books are written by people who use the tools every day, not by journalists covering them from the outside.
The name is a nod to Douglas Adams, whose Hitchhiker’s Guide imagined a galaxy-spanning network called the Sub-Etha. We liked the metaphor. Sub-Etha Press is not affiliated with or endorsed by the Douglas Adams estate.
About the Author
Dennis Vorobyov is the CEO and co-founder of EltexSoft, a boutique software engineering studio he built from scratch in 2015 to a team of 35–50 engineers. EltexSoft has shipped 100+ projects for clients from early-stage startups to Fortune 500 enterprises, with teams in the United States, Portugal, and Ukraine.
He moved his family to Lisbon and reorganized operations while Russia’s full-scale war on Ukraine was ongoing in 2022. By mid-2023 he had reworked about 90% of the company’s workflows around AI. 42: The AI Builder’s Stack is what he learned — a practitioner’s framework for how AI capabilities build on one another, from the first prompt to organization-wide transformation.
Advance praise
“Placeholder blurb — real advance praise to follow before launch.”
— Reviewer name, Title
“Placeholder blurb — real advance praise to follow before launch.”
— Reviewer name, Title
Advance-praise quotes are placeholders. Final endorsements will be supplied ahead of the August 15, 2026 launch.
Suggested interview questions
You reworked ~90% of EltexSoft’s workflows around AI by mid-2023. Where did you start, and what broke first?
The book argues AI is becoming an “operating system” for organizations. What does that mean in practice?
Why do most teams stall after the prompt-and-chatbot phase?
You publish with no sponsors and no affiliate links. Why does that matter for a technical book?
What’s the most over-hyped layer of the AI stack right now — and the most underrated?
How should a non-technical executive read this book differently than an engineer?
You ran this transition while relocating during a war. How did constraint shape the method?
What’s the one workflow change you’d tell any team to make this week?
