Marcin “HCK” Firmuga
Independent software developer
Experience
Independent Software Developer
HCK Labs · self-employed
June 2025 – present · Venlo, Limburg, Netherlands · remote
- PC Workman, a Windows 10 and 11 monitoring and diagnostics utility with a fully offline AI assistant, published on the Microsoft Store after fourteen months of building in public. Current release 1.8.7, 8 August 2026.
- 110 recognised assistant intents in Polish and English, an offline process library of 521 entries, an offline hardware compatibility database of 196 CPUs and 84 GPUs, and a source suite of 330 automated tests.
- Released through the Microsoft Store, signed GitHub releases and SourceForge. Sigstore-signed, VirusTotal scanned, CodeQL on every commit.
- Scaling Laws, a Unity simulation game in C#, 1,505 EditMode and 74 PlayMode automated tests at version 0.6.0.
- Writes and maintains the project documentation and 37 long-form technical guides, 34 of them published in both Polish and English.
IT Support Intern
IT-M Kasy Fiskalne
2022 · two months · Radom, Poland · on site
- PC repair and hardware troubleshooting.
- Windows installation and configuration.
- End-user support and direct customer communication.
- Technical documentation.
Freelance, selected
Independent clients
alongside the above
- Video editing, subtitling and transcription.
- Website development and Shopify store setup.
Skills
Languages and frameworks
- Python, Tkinter
- C#, Unity
- HTML, CSS, JavaScript
Systems
- Windows 10 and 11 internals
- System monitoring and diagnostics
- PC repair, installation, configuration
Practice
- Automated testing, CI, CodeQL
- Signed and reproducible releases
- Technical writing, Polish and English
What the work looks like
Built in public
Three dated article series a week alongside the releases, running since 2025: what shipped, how it works, and what broke.
Evidence over claims
The guides say plainly where the software does not measure something, including where PC Workman itself has no reading to offer.
Distribution
Microsoft Store, signed GitHub releases and SourceForge, with a published security and verification policy.
Figures on this page were measured from the source on 28 September 2026. Longer version, with the work itself: author page · HCK Labs.