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With Attitude

AI Product Manager turning everyone into AI builders. Substack Bestseller. I run a 10K+ community at https://karozieminski.substack.com/

Location Denmark Joined Joined on  Personal website https://karozieminski.substack.com/
What I Refuse to Say About AI in 2026

What I Refuse to Say About AI in 2026

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Why Your Perplexity Credits Vanish (and How to Make 10K Last)

Why Your Perplexity Credits Vanish (and How to Make 10K Last)

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Anthropic Just Split the Frontier in Two

Anthropic Just Split the Frontier in Two

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Claude Skills: Editorial Minimalist UI System

Claude Skills: Editorial Minimalist UI System

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12 AI Projects Built by the PwA Community

12 AI Projects Built by the PwA Community

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Claude Opus 4.8: What Changed, and How I'll Test It

Claude Opus 4.8: What Changed, and How I'll Test It

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Coding Prompts: The Runaway Subscribe Button Prompt

Coding Prompts: The Runaway Subscribe Button Prompt

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Source Code: The Runaway Subscribe Button

Source Code: The Runaway Subscribe Button

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I Built a Runaway Subscribe Button. It Brought 70 New Subscribers in 6 Days. Code + Challenge Inside.

I Built a Runaway Subscribe Button. It Brought 70 New Subscribers in 6 Days. Code + Challenge Inside.

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Gemini Omni Flash: Cute Videos, Serious Product Strategy, and the Future of Editable Reality

Gemini Omni Flash: Cute Videos, Serious Product Strategy, and the Future of Editable Reality

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Prompt Refiner Template

Prompt Refiner Template

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Perplexity Computer in May 2026: 5 Workflows I Run Every Week

Perplexity Computer in May 2026: 5 Workflows I Run Every Week

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The Context Pyramid: A PM’s Framework for AI Agent Context Engineering

The Context Pyramid: A PM’s Framework for AI Agent Context Engineering

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How I Built Product with Attitude from 0 to Bestseller, without Pretending I Have a Viral Playbook

How I Built Product with Attitude from 0 to Bestseller, without Pretending I Have a Viral Playbook

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Anthropic Launches Claude For Small Business

Anthropic Launches Claude For Small Business

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Prompt: The Context Spec Generator

Prompt: The Context Spec Generator

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An Illustrated Guide to Context Engineering, Prompt Engineering, and The Future of Both

An Illustrated Guide to Context Engineering, Prompt Engineering, and The Future of Both

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I Asked Perplexity Computer for a Palantir Tearsheet, and 7 Minutes Later I Had a Bloomberg. And a Concern.

I Asked Perplexity Computer for a Palantir Tearsheet, and 7 Minutes Later I Had a Bloomberg. And a Concern.

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The Exact Prompt to Fix "My AI Tool Can't Access My Localhost"

The Exact Prompt to Fix "My AI Tool Can't Access My Localhost"

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What Is A Sandboxed Virtual Machine?

What Is A Sandboxed Virtual Machine?

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Are You a Vibe Coder? Don’t Ship Straight Into the Provider Trap

Are You a Vibe Coder? Don’t Ship Straight Into the Provider Trap

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Is GPT-5.5 Reliable For Citations? No. It’s The Worst Flagship For That Job.

Is GPT-5.5 Reliable For Citations? No. It’s The Worst Flagship For That Job.

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Claude Design Review: 48-Hour Builder's Test + Hero Prompts

Claude Design Review: 48-Hour Builder's Test + Hero Prompts

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I Mapped the Opus 4.7 Release to Your Role, Goals, and Real Workflows

I Mapped the Opus 4.7 Release to Your Role, Goals, and Real Workflows

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Discounts for Premium Members (Q2 2026)

Discounts for Premium Members (Q2 2026)

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Everything I Can Offer You In Q2.

Everything I Can Offer You In Q2.

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I Tested Atoms, Lovable, and Replit. One of Them Solves the Problem That Kills Most Apps.

I Tested Atoms, Lovable, and Replit. One of Them Solves the Problem That Kills Most Apps.

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I Built a Claude Cowork Loop That Improves Itself. Here's the Exact Setup.

I Built a Claude Cowork Loop That Improves Itself. Here's the Exact Setup.

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What AI Builders Are Shipping in the PwA Community Right Now

What AI Builders Are Shipping in the PwA Community Right Now

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Save Credits in Perplexity Computer: Advanced Guide, Part 2 (2026)

Save Credits in Perplexity Computer: Advanced Guide, Part 2 (2026)

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Your AI Agents Are Engineers Now. Manage Them Like It.

Your AI Agents Are Engineers Now. Manage Them Like It.

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The Only Prompting Guide That Works On Reasoning Models (And Our Cognition)

The Only Prompting Guide That Works On Reasoning Models (And Our Cognition)

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Perplexity Hub (2026)

Perplexity Hub (2026)

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The Tools I've Built (and What's Coming Next)

The Tools I've Built (and What's Coming Next)

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Claude Cowork Skills - Cheat Sheet (2026)

Claude Cowork Skills - Cheat Sheet (2026)

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Where to Deploy in 2026: Netlify, Vercel, Railway, Supabase

Where to Deploy in 2026: Netlify, Vercel, Railway, Supabase

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Perplexity Hub

Perplexity Hub

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I Built A Tool Every Substack Writer Needs. And It's Not AI.

I Built A Tool Every Substack Writer Needs. And It's Not AI.

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Claude Just Unlocked 1 Million Tokens For Everyone. Here Is What That Means.

Claude Just Unlocked 1 Million Tokens For Everyone. Here Is What That Means.

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I Tested Perplexity Computer Hard. Here’s How I’d Save Credits Now

I Tested Perplexity Computer Hard. Here’s How I’d Save Credits Now

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Claude Cowork Guide for Power Users: 50+ Tested Tips on Plugins, Skills, Sub-Agents, and Memory

Claude Cowork Guide for Power Users: 50+ Tested Tips on Plugins, Skills, Sub-Agents, and Memory

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I Refuse To Build A Trap

I Refuse To Build A Trap

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Claude Hub

Claude Hub

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Cowork Connectors

Cowork Connectors

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Design with AI

Design with AI

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Vibe Coding Prompt Packs Hub

Vibe Coding Prompt Packs Hub

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The Complete Vibecoding & Speccoding Resource Hub

The Complete Vibecoding & Speccoding Resource Hub

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Choose Your Builder Track

Choose Your Builder Track

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I Refuse To Ship Without Understanding Why It Makes Sense

I Refuse To Ship Without Understanding Why It Makes Sense

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I Refuse To Amplify Hype That Ignores Who Pays The Price

I Refuse To Amplify Hype That Ignores Who Pays The Price

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He Pays $10/Month for AI Music. Deletes Every Track.

He Pays $10/Month for AI Music. Deletes Every Track.

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I Refuse To Choose Between Ambition And Presence

I Refuse To Choose Between Ambition And Presence

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10 Tools I Use To Run A Bestselling Substack Publication in 2026

10 Tools I Use To Run A Bestselling Substack Publication in 2026

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Valentine's App 2026 - Full Source Code

Valentine's App 2026 - Full Source Code

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I Built You a Valentine’s App in 33 Minutes. (Source Code Inside)

I Built You a Valentine’s App in 33 Minutes. (Source Code Inside)

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Why Substack Has No Gurus: 6 Product Decisions That Killed Guru Culture by Design

Why Substack Has No Gurus: 6 Product Decisions That Killed Guru Culture by Design

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Recraft 101: A Creator's Guide to Building a Reusable Visual System

Recraft 101: A Creator's Guide to Building a Reusable Visual System

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Claude Skill: SEO And AIO-optimized Alt Text Generator for Substack

Claude Skill: SEO And AIO-optimized Alt Text Generator for Substack

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You Can't Critique AI You Haven't Built With

You Can't Critique AI You Haven't Built With

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👋 Start here

👋 Start here

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