Justyna
I'm a solo Rails 8 developer shipping 6+ products with AI agents
I'm a solo Rails 8 developer shipping 6+ products with AI agents
I'm Justyna, a Rails developer from Poznań, Poland. Over the past months I've shipped multiple production apps — all solo, all Rails 8, all with AI-assisted development (Claude Code + OpenAI).
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CramZap
Upload a PDF, get an interactive quiz powered by AI. Preview and edit questions, track your score, share with a link. Built for students, language learners, and professionals prepping for certifications. No account needed to try.
Launched -
SnipeSale
Deal aggregator that scans 98+ indie shops daily for promotions. Users submit their favorite niche retailers, follow them, and get email alerts when new deals drop. 17,000+ active deals, completely free.
Launched