Szymon Grajner · SfymmiK

Software & Web Developer

I build fast interfaces, experiment with low-level programming, self-host infrastructure, and keep polishing projects until they feel right.

See projects Forgejo Contact
Linux FreeBSD Web Java MySQL Self-hosting
Current focus Web tooling, Java, and personal infrastructure

Building projects that are actually useful and refining the UX afterward.

Platforms Arch · Gentoo · FreeBSD
Main git git.sfymmik.xyz
Style Fast, personal, practical
Approach Learn by building

About

Personal, technical, and always experimenting

Curiosity-driven projects with a strong focus on usability, performance, and learning in public.

Who I am

I’m Szymon (SfymmiK), a 16-year-old programmer from Poland. I enjoy low-level programming, web development, and building clean user-facing tools.

What I build

Personal websites, self-hosted services, experiments, tooling, and interfaces that are simple, fast, and satisfying to use.

Languages

I speak Polish and English fluently. My English level is C1/C2.

Where to find me

Based in Poland and mostly active online through Discord, Git platforms, and personal infrastructure.

Projects

Things I actively build and maintain

A few selected projects that represent my style and interests.

Stack

Tools and platforms I work with

The things I use most, and the areas I keep exploring further.

Languages & tech

Java Go HTML CSS JavaScript MySQL

I prefer learning through real projects instead of isolated toy examples.

Platforms

Arch Linux Gentoo FreeBSD

I like clean setups, tuning systems, and understanding how things work underneath.

Focus areas

  • Performance and responsiveness
  • UI polish and readability
  • Self-hosting and deployments
  • Low-level learning and experimentation

Links

Places where I publish and hang out

Code, mirrors, updates, and platforms I use.

Forgejo

@SfymmiK on my own instance

GitHub

@SFYMMIK

Codeberg

@SfymmiK

Twitter / X

@_SfymmiK

Lings

Discord server / project space

YouTube

@SFYMMIK

Shoutouts

People I know and work with

Scryv

Friend

kemf

Friend

Maydo

Friend

Contact

Want to reach out?

Collaborations, questions, feedback, or just saying hi.

Email

Best for anything serious.

My time: --:-- Your time: --:--

If it’s very late for me, I might reply later or the next day.

szymongrajner@sfymmik.xyz

Discord

Best for general questions.

YOU ARE --H FROM ME

Good for quick messages, casual questions, or project talk.

@sfymmik