Bence Tátrai

The starting point was that family photos and personal files usually sit with Google or Microsoft, and films need several subscriptions. BenCloud brings it all into one place: it runs on a home server, works from any browser, and the data stays at home.

• Upload, download and stream files and media, with folders and sharing
• User and permission management
• A media library that recognises films and series from their file names and fetches their details
• Playback right in the browser and contextual search
• Tested on three levels: Jest unit tests, API integration tests and Playwright E2E tests against the production Docker setup

Live site · coming soon

One plugin for the whole vocal mix. In BASIC mode you sing for about 15 seconds and the AI sets cleanup, EQ, de-essing and compression, then builds a chain for the style you pick. PRO mode works like a DAW mixer strip: you can freely add, reorder and blend modules in parallel.

• AI voice analysis and a chain built around your chosen style
• Modules: denoise, de-esser, EQ, compressor, pitch correction, harmonies, delay, reverb, limiter and plenty more
• Level-matched bypass, A/B comparison, undo, zero-latency tracking mode
• Automated offline render and snapshot tests

Live site · coming soon

Everyone sees their role on their own phone, while the app narrates the night in the official order and works out who won at the end. All you need to join is a four-letter room code or an invite link.

• 3–18 players, 17 roles and recommended setups
• The night runs in the official order with “fair timing”, so silence gives nothing away
• Built-in chat for the discussion, voting and automatic results
• Not a single external package, just a plain Node.js server

Live site · coming soon

A desktop app built with Electron. It watches the camera and microphone, and when it picks up motion or sound it also saves the half minute before it. Nothing ever goes online.

• Motion detection by comparing frames, plus audio level monitoring
• The 30 seconds before each event are included in the clip
• Manual or scheduled monitoring (e.g. 22:00 to 08:00), with old recordings cleaned up automatically
• Daily summary with an hourly chart, CSV export
• Over 100 automated checks, with recording tested against a virtual camera

Live site · coming soon

Guests get to know the place through photos, a description, the amenities and a map. The owner edits the content in a password-protected admin panel, no coding needed.

• Responsive photo gallery, amenity icons, embedded Google Maps
• Admin panel: secure login, image upload and drag-and-drop reordering
• Protection: security headers, rate limiting, hashed passwords
• Runs on Docker Compose with Nginx

Live site · coming soon

The bot watches both platforms’ order books in real time and, when it pays off after fees, bets “up” on one side and “down” on the other. Simple on paper, but running it live taught me a lot. The gap was often only there at the very top of the book, with nothing worth taking below it, and by the time the bot fired, the price had often moved. At first I sent both legs in parallel, but orders on Limitless rarely filled, so often only one side got executed. So I rewrote it to fire sequentially: the Limitless leg goes first, and only once it fills does the Polymarket leg follow.

• Real-time order book monitoring over WebSocket
• Recalculates the opportunity on every update using fees and the actual book depth, not just the best price
• Sequential execution: the harder-to-fill Limitless leg first, then Polymarket
• Automatic exit: if a position gets stuck, it recalculates whether to sell at a smaller loss or, if the price hasn’t dropped much, hold on
• Beforehand I checked over hundreds of windows that both platforms settle from the same price source

Live site · coming soon

A learning project: I implemented strategies from the literature and tried them on real market data. The biggest lessons were about methodology: I chose the settings on one period and checked them on a separate, untouched one, so they weren’t just tuned to the past.

• Backtests with real fees, on separate training and validation periods
• Monte Carlo simulation to estimate risk
• Demo mode and an interactive HTML report of the results

Live site · coming soon