ENGINEER · TINKERER · MUSICIAN

Bartosz Woźniak

I make things. Some of them are even useful.

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$ cat ~/about

Computer Science engineer (M.Eng., Systems & Networks). Started as an iOS and C++ developer, moved through web development and mentoring into DevOps engineering. Interested in open source, clean systems, and software that actually ships.

Music has been just as central — ten-plus years across guitars, bass, keys, and drums, from metal to jazz. I DJ, work with DAWs, and occasionally put AI music online when something comes out worth sharing.

Get in touch: bartosz.wozniak.solutions@gmail.com

$ ls ~/apps

see all →
🎸

Tuner

music

A chromatic tuner in your browser — one less app to have installed on your phone.

♟️

Forked

game

A chess twist — each turn the engine offers a short list of candidate moves and you pick one.

🗺️

ZoomOut

game

A GeoGuessr-inspired map game (solo or up to 4 people) built with playroom.js.

🍿

Microwave Popcorn Timer

tool

Helps you determine when popcorn is ready by listening to popping sounds and analyzing the intervals.

💰

CyberHeist

game

A board game where people can join, and bots can fill the remaining seats, for up to 5 players total - built with playroom.js.

🐢

Logo

tool

A nostalgic replica of Logo Komeniusz - the environment where I wrote my first procedures.

🕐

TZViz

tool

Used when you want to visualize how timezones overlap to check who is available when and what timeslots are common for whom.

☀️

P12y

viz

Visualize how big the Sun would be if the Earth were the size of a soccer ball.

😩

Groan Tube

toy

A groan tube in your browser — the place for groans.

🎶

PolyFreq

music

Visualize the sound you hear through your mic in real time and detect the chords that match what's playing.

🌐

NOC

tool

A network operations center inspired by Packet Tracer — design, simulate, and visualize networks in your browser.

🏆

Cup

tool

A lightweight tournament bracket generator — create and manage single-elimination brackets in your browser.

🦠

Game of Life

sim

Conway's Game of Life in your browser — explore emergent patterns on an interactive grid.

📜

PolicyPeek

dev

Validate and simulate AWS ECR lifecycle policies with a time slider to watch images expire over time.

🔎

Regexolve

dev

Verify your regular expressions and look for ones that will match your inputs.

🌋

Lava

viz

An animated wall of lava lamps — an ambient nod to Cloudflare's LavaRand entropy wall.

🐍

Snake

sim

Watch a DQN reinforcement learning agent teach itself to play Snake in real time — live charts, neural network visualization, and a tunable grid.

🎨

Paint

tool

A browser replica of MS Paint — draw, fill, and erase with the classic tools you grew up with.

⏱️

Chess Clock

tool

A chess clock in your browser — track time for two players with configurable time controls.

🤫

Hush

tool

A noise machine in your browser — white, brown, pink, blue, and violet noise you shape with a draggable EQ curve over a live spectrum.

💸

Burner

viz

Ever wondered what's the speed of money burning during that long meeting? Add the people, watch the cost climb in real time.

$ ls ~/posts

see all →
May 30, 2026 Coming Back to AI Music — Two Years Later
I wrote about AI music generation when Suno felt like a magic trick. Re-reading it today, some of …
6 min read
Apr 16, 2026 DIP in Practice
The list that shouldn't be there
15 min read
Feb 26, 2026 Logo in the browser
The smell of dust and warm plastic. The faint flicker of a CRT in a room with blinds half-drawn. On …
5 min read
Feb 02, 2026 From idea to live site in 2 prompts: timezone viz with Cursor
I had an idea: visualize timezone overlap with a small report - something you could use when …
1 min read
Feb 01, 2026 How I made this page (cheaper)
A while ago I wrote How I made this page: Hugo on AWS with S3, CloudFront, Lambda@Edge, Route 53, …
2 min read
Dec 31, 2025 Spec-driven loops and old engineering muscle memory
I had a small déjà vu moment recently. Years ago, when I was part of an R&D team working on the …
2 min read
Aug 11, 2024 My Little Cluster
I’m someone who prefers hands-on experience before diving into the manual. So, before I felt …
5 min read
Jul 26, 2024 Should I Push or Should I Pull?
<insert_should_i_stay_or_should_i_go_guitar_riff> You may say “who asked?” - my …
5 min read
Jun 05, 2024 AI music generation - yay or nay?
I’ve been a musician for over ten years, playing various instruments like guitar, keyboards, …
4 min read
Apr 08, 2024 How I made this page
In response to the questions about my previous post that I received, here’s a detailed …
9 min read
Apr 04, 2024 How to digitalize your wedding
When my fiancée and I dove into wedding planning, we quickly saw an opportunity to put our coding …
7 min read

$ ls ~/music

I also make noise.

AI music I'm not embarrassed by. That's the bar, and it clears it.

► suno.com/@wozniakpl