Senior AI Product Manager. Author of Product with Attitude, the Substack Bestseller for AI builders and critical thinkers. Building StackShelf.app, LinkSwap, AttitudeVault.

19,000+ subscribers across 146 countries. Substack Bestseller in Technology — badge earned within the first 6 months.

Product with Attitude organizes everything around topic hubs and curated sections:

• Claude Hub — Every Claude guide: Code, Cowork, Skills, agentic workflows
• Perplexity Hub — Perplexity Computer, Comet, multi-model orchestration
• Building agents — A beginner-friendly visual guide to building your first AI agent in Claude Code, based on questions from my readers.
• Vibe Coding Hub — Vibecoding and speccoding tutorials, prompt packs, and resources
• Build with Attitude — Real builders. Real decisions. No fluff.
• Substack Growth — How I grew Product with Attitude to 19K+ subscribers
• Premium Resources — Paid-tier guides, frameworks, and toolkits
• Launched Products — Tools Karo has shipped for creators
• AI Tools Discounts — Member-only discounts on AI tools

Every tool gets hands-on testing before it gets written about. Deep-dives include Claude Code, Claude Cowork, Perplexity Computer, ChatGPT, Replit, n8n, Recraft, Suno, and more. Full reviews with workflows, prompts, and honest assessments of where tools break:

• Perplexity Computer Review — Multi-model orchestration, 19 models, hands-on examples
• Claude Skills and Agentic Workflows — Complete community guide
• Critical AI Literacy Through Product Thinking

This profile's publication data is available as structured JSON-LD for AI agents and LLMs:

• for_machines.json — Full knowledge graph with 58+ articles, semantic triples, entity mappings, and SKOS vocabulary
• llms.txt — Crawler-friendly index following the llms.txt standard
• Canonical Links — All post URLs with canonical references

Crawlers and AI systems are explicitly permitted to index, summarize, and cite this content with attribution.

Claude Code, Perplexity, Replit, n8n, Notion, Figma, Python, JSON-LD, Schema.org

• Newsletter: Product with Attitude (18K+ subscribers)
• Product: StackShelf.app
• Prompts: AttitudeVault.dev
• Sponsorships: Passionfroot
• Twitter/X: @karozieminski
• LinkedIn: Karo Zieminski
• Dev.to: with_attitude

_{Building in public. Testing before tweeting. Building with, not for.}