# TreeTank > Portfolio and digital experiments by Jacek Mariański — fullstack developer with 10+ years of experience in enterprise systems, AI tools, and modern web development. ## About TreeTank is the personal brand and portfolio of Jacek Mariański, a fullstack developer based in Poland. The site showcases independent projects at the intersection of AI, design, and web development. - Author: Jacek Mariański - Email: hello@treetank.net - LinkedIn: https://www.linkedin.com/in/jacek-mariański-66634883 - GitHub: https://github.com/jmarianski - GitLab: https://gitlab.com/treetank ## Core Skills TypeScript, React, Next.js, Node.js, Python, PHP, WordPress, Docker, PostgreSQL, Electron, Tauri, AI integration (OpenAI, Anthropic Claude, Google Gemini). ## Pages - [Home](https://treetank.net/): Landing page with project highlights and contact info - [Case Studies](https://treetank.net/projects): In-depth technical write-ups of selected projects - [Portfolio Timeline](https://treetank.net/portfolio): Chronological overview of professional work (2014–present) ## Projects - [Screenshot-to-Code](https://treetank.net/projects/screenshot-to-code): Self-hosted fork of abi/screenshot-to-code. Converts UI screenshots into production-ready HTML/CSS/React using GPT-4 Vision and Claude. Added Docker deployment, Claude Sonnet support, and custom UI improvements. - [PolyTrans](https://treetank.net/projects/polytrans): WordPress translation plugin with bring-your-own-AI model. No subscriptions — connect Google Translate, OpenAI, Claude, or Gemini and pay only for tokens consumed. Powers 10+ languages on trans.info. - [HubSmith](https://treetank.net/projects/hubsmith): Desktop app (Electron/Tauri) for local HubSpot CMS development. Browse themes, preview modules with live reload, edit locally with any code editor or AI assistant, and sync changes back to HubSpot. Free and open source. - [Trans.info](https://treetank.net/projects/trans-info): Contribution to a major European logistics portal — Next.js 12→14 migration, PolyTrans-powered expansion to 3 new language markets, redesign, and analytics optimization. ## Source Code - HubSmith: https://gitlab.com/treetank/hubsmith (open source) - PolyTrans: https://gitlab.com/treetank/polytrans (open source) - Screenshot-to-Code: https://gitlab.com/treetank/screenshot-to-code (fork)