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justi/README.md

Hi, I'm Justyna πŸ‘‹

πŸ“ PoznaΕ„, Poland | πŸ’Ž Ruby on Rails Engineer | πŸš€ Building production apps

Ruby Rails JavaScript PostgreSQL Hotwire Tailwind Codex Claude macOS OpenCode Web

Full-stack Rails developer shipping production apps β€” from health tools and EdTech to SaaS platforms and marketing automation. AI-assisted, human-driven.

Production Projects

  • πŸ›’ Snipe Sale πŸ‡¬πŸ‡§πŸ‡΅πŸ‡± β€” Track promotions from niche shops, not products
  • πŸ₯‘ KetoLabs.pl πŸ‡΅πŸ‡± β€” Keto/LCHF/LCHP education hub β€” built it because I follow LCHF myself
  • ✍️ OutlineShare πŸ‡¬πŸ‡§ β€” LinkedIn content workflow: write, schedule, publish, grow
  • 🎨 Logorithmy πŸ‡¬πŸ‡§ β€” Online logo maker with server-side ImageMagick rendering
  • πŸ“ CramZap πŸ‡¬πŸ‡§ / Odpytywarka.pl πŸ‡΅πŸ‡± β€” Upload a PDF, get an interactive quiz (OpenAI-powered)
  • πŸ” HybridRanking πŸ‡¬πŸ‡§ β€” SEO auditing tool with real-time analysis
  • 🎭 PersonaTool πŸ‡¬πŸ‡§ β€” Product-market fit testing with LLM-generated synthetic personas
  • 🚧 Reddit Promo Planner πŸ‡¬πŸ‡§ β€” AI-powered Reddit promotion scheduling via LLM (under construction)
  • πŸ’° PriceScanner β€” Ruby gem for multi-currency price extraction from text
  • πŸ”’ claude-code-project-boundary β€” Claude Code plugin: scope-aware protection for destructive ops within project boundaries
  • πŸ’ͺ stimulus-password-strength β€” Importmap-friendly Rails 8 password strength field with Stimulus & zxcvbn

What I'm About

  • Rails 8 all the way β€” Hotwire, Turbo, Stimulus, no heavy JS frameworks needed
  • AI-augmented development β€” Claude Code (agents, skills, commands, hooks) and OpenAI to ship faster
  • Ship it β€” from idea to production in days, not months
  • Solo founder mode β€” designing, building, deploying, and marketing entire products

Connect

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I architect, direct UX, and orchestrate AI agents β€” they code, I steer. Powered by Polish coffee β˜•

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  1. claude-code-project-boundary claude-code-project-boundary Public

    Claude Code plugin: scope-aware protection β€” allows destructive ops (rm, mv, chmod) within project, blocks them outside. Built for dangerouslySkipPermissions mode.

    Shell 25 1

  2. ruby_llm-contract ruby_llm-contract Public

    Know which LLM model to use, what it costs, and when accuracy drops. Companion gem for ruby_llm.

    Ruby 6