Marcin Firmuga | 22yrs | (IT Specialist edu.) | Full Stack Developer

Welcome! :) Building software between retail shifts. 12 months of unstoppable build. 4 rebuilds. Still shipping.

99 place in Top GitHub Commiters in Poland

Currently Working On

PC_Workman, System monitor that explains why your PC is slow, not just that it's slow. 700+ commits. 62 GitHub stars. ~790 downloads. another .exe available.

hck_GPT - Fully Offline AI Assistant PC_Workman has a built-in AI that works without internet, without API keys, without sending your data anywhere. Every message goes through a 9-layer routing engine

Local and Offline, for your safety!

GuideAI, Turn 100-page manuals into QR-code AI assistants.
Because paper manuals suck.

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My Story

Nine months in a Netherlands warehouse. 15km daily. Scanning barcodes. Coding every night on a laptop hitting 94°C.

Lost job December 22, three days before Christmas. Started rebuild #4 that night. Shipped first .exe three weeks later.

/\ - Thats how my First PC Workman Project started - /\

Currently building full-time. Google AI certification in progress.

Check ROADMAP to 1.7.8 of PC Workman! Here is next... ROADMAP to 2.0.0 - Microsoft Store Target here.

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Stack

PC_Workman: Python, tkinter, WMI, SQLite, Sigstore, PyInstaller GuideAI: React, Supabase, Claude API, Vercel, Google OAuth

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Find Me

LinkedIn - 3000 followers, weekly series

Medium - 390+ followers, tutorials & build logs

X/Twitter - 180+ followers, daily updates

Dev.to - 4000 followers technical articles

Everything and COFFEE :)

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Weekly Content Series

I publish 3x/week, every week:

• Monday Grind Blueprint - the plan for the week
• Wednesday Code Autopsy - real code, explained
• Friday Shipped & Scarred - what actually shipped vs what didn't Best post: 48,000 views on LinkedIn (May 2026).

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Numbers

• 12 months of work on PC_Workman
• ~700+ commits on main branch
• 62 GitHub stars, 790 downloads
• 3000 LinkedIn / 4000 DevTo / ~400+ Medium / 180+ X followers
• 27+ articles across Medium, Dev.to, HackerNoon
• Security: Sigstore signed, VirusTotal 0/70, CodeQL on every commit
• 2 dogs - Kacia 11yr, Lusia 2yr (best teammates for breaks)

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Warehouse to Developer | Building in public | HCK_Labs