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Erel Adoni Haller
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Projects

  • An event RSVP platform with authentication, database-driven workflows, and a WhatsApp messaging flow, deployed to production.

    • Next.js
    • TypeScript
    • PostgreSQL
    • WhatsApp API
  • A bilingual recipe-management app with structured ingredients, equipment, and instructions, plus a unit-conversion engine.

    • SvelteKit
    • TypeScript
    • PostgreSQL
  • PowerShell dotfiles for Windows that bootstrap a machine from scratch, including app installs via winget.

    • PowerShell
    • winget
  • A visual interpretation of how sorting algorithms work, animating every comparison and swap.

    • JavaScript
    • HTML
    • CSS
  • A Chrome extension that sends customized message templates to apartment advertisers to speed up the apartment search.

    • JavaScript
    • Chrome Extension
  • A complete, highly customizable dark (and light) theme for WhatsApp Web. Co-authored.

    • Stylus
    • CSS
    • UserCSS
  • A Hebrew translation of the Keep Talking and Nobody Explodes bomb-defusal manual. An official version I made is credited in-game.

    • HTML
    • CSS
    • JavaScript
  • A single-player Blackjack game built in vanilla Microsoft Excel - no VBA, just formulas.

    • Microsoft Excel
  • A Python console program that generates and solves 9x9 Sudoku puzzles.

    • Python
  • A Snake game with apples and walls, built in Python with Tkinter. (HUJI Intro to CS.)

    • Python
    • Tkinter
  • An implementation of the Boggle word game in Python with Tkinter. (HUJI Intro to CS final project.)

    • Python
    • Tkinter
  • A popular browser extension for managing Gmail without opening it. I co-authored many feature ideas with the developer and donated three dark themes (linked).

    • Browser Extension
    • CSS
  • An open-source screen-capture and file-sharing tool for Windows. I translated the program into Hebrew.

    • Localization
    • Hebrew