Ondřej
Pavlis.
Passionate about fitness, technology, and pushing boundaries through code. Building stuff cause I can — small things, broken things, fixed things. Learning how systems work along the way.
Things I've
built or broken.
.eml, checks sender identity, SPF/DKIM/DMARC, look-alike domains, link targets & attachments, and outputs a rule-based verdict with evidence. Never touches the network.The toolkit.
What I write in
Languages
- Python — scripting & small games
- HTML & CSS — layout / typography
- JavaScript — sites, small tools
- Shell — bash & zsh basics
Daily drivers
Tools
- Git & GitHub — workflow
- Homebrew — package management
- btop — system monitor
- VS Code & Terminal
Where it runs
Systems
- macOS — primary OS
- Windows — secondary / dual
- Linux — curious & learning
- CLI navigation & troubleshooting
What's next
Curious about
- Ethical hacking & pentest tooling
- Networking — packets, DNS, ports
- CTF labs & security writeups
- System optimization & automation
Stack tiles
Stuff I'm chasing right now
A running list — what's in the browser tabs, the notebook, the terminal history.
I'm a student at SSPŠ Prague, a developer, and a cybersecurity enthusiast from a small town just outside the city.
I'm passionate about fitness, technology, and pushing boundaries through code. Right now I'm learning how systems work — networking, terminal tools, web stacks — and writing small Python and HTML projects along the way.
School-wise, I've swapped Černošice for Prague: I now study at SSPŠ — the Smíchovská střední průmyslová škola on Preslova street in Smíchov, a technical school that has been around since 1901. Mornings start with the train into the city, and whatever I pick up in class usually ends up as a small project on this site.
Most days I'm experimenting in the terminal, reading about ethical hacking, or sketching out a fitness app concept. Other days I'm at the gym thinking about the same things.
This site is where the threads meet — projects, certificates, and the slow, steady process of becoming someone who can actually break in (the legal way).
Certifications
HackDays — Computerworld
Hack-style event run by Computerworld CZ — completed challenges & received the official osvědčení.
TechDays
Czech tech conference participation — workshops, talks & certified attendance.
Roadmap
Drop a line — Let's talk.
Open to collaboration on small builds, learning together, or just chatting about cybersecurity, fitness, terminals, or anything that sits at the intersection of curious and useful.
ondrej@pavlis.net ↗