Maciej Zmitrukiewicz.

MaciejZetCometWeb

Independent founder · Wrocław, Poland

I build web products.
And connect the dots.

Hi, I’m Maciej. I build web products and the tools that help people make them better.

Currently building CometWeb Insight. Exploring what thoughtful software and useful AI can do together.

Explore my work Get in touch
MZ·Maciej Zet Agentic AITools · Agents · WorkflowsWeb qualityPerformance · AccessibilityWeb applicationsInterfaces · APIs · DataSEO & visibilitySearch · Structure · EvidenceResearch & developmentExperiments · Prototypes
Areas I work in
From the first idea to the everyday details.Product · Engineering · Research

01 / Selected work

What I’m building.

Products I own, problems I care about, and tools I share along the way.

CometWeb InsightFrom audit to action

Main focus / CometWeb

CometWeb
Insight

An audit is the beginning. Knowing what to fix comes next.

Website quality audits across performance, SEO, accessibility, security and ecology — brought together with priorities and a plan for the next steps.

Explore Insight
CometWeb Insight

From understanding to improvement

01

Audit

Understand the state of the website.

02

Priorities

Decide what needs attention first.

03

Action

Make improvements and check again.

A practical path from findings to fixes.

14 / 14

Search visibility

RankProof

Open tools for search visibility, backlinks and site structure. Evidence you can inspect.

CLI · SEO · Open source

Agent workflows

CometWeb Labs

Reusable skills for research, product work, QA and releases across Codex, Claude Code and Cursor.

Agents · Research · QA

Digital sustainability

Carbon Badge

A web component that makes a page’s estimated carbon footprint visible.

Web Component · CO₂e

Browser extension

CometLens

Website audit information on the page you are working on, connected to Insight.

Insight · Browser

In development

CometBase

A local-first workspace for a small business, with CRM and daily operations in one place.

SQLite · Tauri · Svelte

In development

CometPen

Content scoring, search analysis and publishing workflows in one writing workspace.

Content · SEO · Workflows

Research & collaboration

AI4Business

Research-circle projects connecting AI, business processes and medical workflows.

R&D · AI · Collaboration

1st place · Hackathon 2026

AI in Finance

An AI solution for financial services at the BNY × UEW hackathon.

FinTech · BNY · UEW

MedTech

4Diagnosis

A speech-to-text interface for medical forms and clinical workflows.

React · STT · MedTech

Sales AI / RAG

OfertownikAI

An agentic sales prototype for exploring an offer database through conversation.

n8n · Pinecone · RAG

Multi-agent research

Council AI

An experiment in model debate, synthesis and the interface for working with AI decisions.

Multi-agent · LLM

Fleet management

Zabezpiecz Auto

A fleet and vehicle-security panel with maps, telemetry and workflow automation.

Maps · Telemetry

Astronomy app

Między Gwiazdami

A sky atlas, event calendar and geolocation. An early project inspired by the night sky.

Mobile · Astronomy

Campus navigation

Campus Map

An interactive map with events and navigation for the university community.

Maps · Events

02 / The story behind CometWeb

From building websites to improving them.

A product shaped by the problems I kept encountering in web projects.

CometWeb

CometWeb started with building websites. Working on performance, accessibility and digital sustainability led to a recurring question: how do you turn separate audit results into a useful plan?

That question became Insight: a place to understand website quality, set priorities and work through improvements. Open tools and research continue to feed back into the product.

Explore Insight ↗
  1. 01

    Web projects

    Building websites and learning from real implementation constraints.

  2. 02

    R&D and AI

    Experiments, automation and collaboration through AI4Business.

  3. 03

    CometWeb Insight

    Website quality: audit → priorities → action.

03 / How I work

Three connected disciplines.

The same curiosity, applied to different parts of the product.

01

Agentic AI

Useful workflows built around models, tools and evidence.

  • RAG and multi-agent workflows
  • API and event orchestration
  • Quality checks and traceable decisions
02

Website quality

Performance, accessibility and digital sustainability considered together.

  • Core Web Vitals and page weight
  • Keyboard and screen-reader access
  • CDN, images and efficient delivery
03

Product engineering

Interfaces, APIs and data designed to work as one product.

  • Tenant and permission models
  • API boundaries and observability
  • Maintainable SaaS architecture

04 / Product principles

Quality is a design decision.

Three principles that guide how I build and improve products.

01

Digital sustainability

Less unnecessary data and computation. I consider page weight, performance and estimated environmental impact together.

CO₂e · CWV
02

Accessibility

Readable interfaces, keyboard navigation and understandable feedback belong in the product from the start.

WCAG · UX
03

Build for longevity

Clear boundaries, maintainable code and architecture that can evolve with the product.

Architecture · Maintenance

05 / A little context

Curious by nature.
Hands-on by choice.

Maciej Zmitrukiewicz
Maciej ZmitrukiewiczFounder & product builder

I’m an independent founder and full-stack developer based in Wrocław. I like working across the whole product: the problem, the interface, and the code that makes it work.

CometWeb grew out of building websites and wanting to understand how to improve them. Today I’m focused on Insight, alongside open-source tools and research into website quality and digital sustainability.

I study IT in Business at Wrocław University of Economics and Business. Research and building products keep giving me new questions to work on.

01

Make it useful. Start with the problem someone actually has.

02

Make it understandable. Clear interfaces, visible reasoning, honest limits.

03

Keep improving. Observe, learn, and carry the useful parts forward.

Experience

Building for the web since 2018

Full-stack projects, SaaS products and R&D. From interface design to backend implementation and deployment.

Education

IT in Business

Wrocław University of Economics and Business. IT technician qualification, supplemented by courses in AI, sustainability, SEO and web design.

06 / My toolkit

Tools behind the products.

Chosen for the work: interfaces, APIs, data and deployment.

01

Frontend

Interfaces and the experience of using them.

SvelteReactTypeScriptTailwind
02

Backend & data

APIs, application logic and data storage.

PythonFastAPINode.jsSQLitePostgreSQLRedis
03

AI & automation

Models connected to tools and practical workflows.

OpenAILangChainn8nRAGMCP
04

Infrastructure

Shipping, running and maintaining applications.

DockerLinuxGitViteCloudflare

07 / Let’s talk

Good things start
with a conversation.

A question about CometWeb, an idea for collaboration, or something worth building together? I’d love to hear about it.