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Practical knowledge for people building technology products.

Learn product, growth, AI, technology, startup execution, and leadership from real-world practice.

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Choose Your Direction

Six ways in — pick where you want to grow.

Product

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Growth

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AI

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Building

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Careers

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Leadership

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Start With a Learning Path

Ordered routes to a real outcome.

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beginner

Product Management Fundamentals

The foundational path for anyone starting in product: how to frame a problem, validate it with one real customer, and turn that into something you can actually ship.

intermediate

Become an AI Product Manager

What it actually takes to manage product where AI is core to the build, not a bolt-on — from picking a defensible AI stack to knowing how AI-assisted development changes what a PM needs to evaluate.

beginner

Build Your First Product With AI

A hands-on path from first prompt to a real, structured product — architecture, project structure, and the failure patterns to watch for before they cost you a rebuild.

Practical Resources

Templates, guides, and ebooks you can use today.

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The Career Starter Pack
Ebook

The Career Starter Pack

A seven-step guide for landing your first real role in tech: the self-audit, your resume, your LinkedIn profile, your first portfolio, your digital footprint, your job role strategy, and how to keep improving after you apply.

CareerCareer Development
The Portfolio Template & Prompt Pack
Ebook

The Portfolio Template & Prompt Pack

A section-by-section guide to building your first portfolio, with three project types to build toward, a filled-in example, a blank template, and the AI prompts to draft it yourself.

CareerTemplates
The LinkedIn Execution Doctrine
Ebook

The LinkedIn Execution Doctrine

A systems manual for engineered visibility on LinkedIn: how the platform actually distributes attention, and how to build durable authority that compounds instead of chasing viral posts.

MarketingCareer Development

JT Build Notes

Lessons from building, shipping, breaking, growing, and operating real products.

All Build Notes
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Build Note

Why My AI Product Stack Keeps Changing

The real reason behind switching AI build tools so often — a hybrid, redundant stack across three providers plus a local fallback, and the lesson that made it non-negotiable.

AIProductTools
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Build Note

What Broke When I Rebuilt Three Products With AI

A first-hand account of the exact failure pattern AI-assisted building creates when speed outruns architecture — and what it actually looks like when a fix in one place starts breaking two unrelated things.

AIBuildingArchitecture

Product Case Library

Real product teardowns, not press releases.

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OPay

OPay: Betting on Physical Infrastructure to Win Digital Trust

How OPay used a massive physical agent network, not app polish, to solve financial inclusion for Nigeria's unbanked — and what that same distribution model exposed about governance at scale.

PiggyVest

PiggyVest: Sequencing Trust Before Complexity

How PiggyVest earned the right to sell riskier investment products by first proving it could keep a small, simple savings promise, one locked deposit at a time.

Grey (Grey Finance)

Grey: Winning by Refusing to Be a Bank for Everyone

How Grey grew to a million users on just $2M in seed funding by staying narrowly focused on one painful problem — African remote workers stuck holding foreign currency — before expanding into business banking.

Product Lab with JT

Coming up next: Product Lab 3.0

A paid, hands-on AI Engineering and Vibecoding workshop for people who want to build real products with AI tools, taught from real practitioner experience.

See Product Lab →

Open PM Curriculum

The comprehensive, canonical curriculum.

Distinct from a Learning Path, which targets one specific outcome — this is everything, structured module by module.

Interim version, actively being expanded by JT.

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What Members Say

Real feedback, from real practitioners.

This is exactly the kind of practical, no-fluff resource I wish existed when I was starting out in product.

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Frequently asked

Product management resources, answered plainly.

Product Slice HQ is a free learning platform for product managers, designers, founders, and tech professionals built by Joshua Theophilus, a Top 1% mentor on ADPList with over 10 years of product experience. It provides articles, ebooks, templates, playbooks, and live cohort programs.