Tangerine

Tangerine is a professional development tool for creating and executing local coding challenges. It provides a secure environment for test case verification using hashed outputs and a minimalist interface for question management.

Core Features

Question Creator

• Markdown-based problem description with live preview.
• Multi-language support including C, C++, Java, JavaScript, and Python.
• Integrated boilerplate code management per language.
• CSV import for bulk test case loading.

Security and Hashing

• Automated SHA-256 hashing of test case outputs.
• Encrypted verification: Expected outputs are never stored in plain text or exposed to the runner.
• Secure local file system browsing for source file selection.

Runner

• Real-time execution and stdout tracking.
• Automated verification against hashed expectations.
• High-performance execution with support for multiple runtimes.

Setup

Prerequisites

• Node.js (Latest LTS recommended)
• Local compilers/runtimes for targeted languages (gcc, g++, python3, java)

Installation

npm install

Development

npm run dev

Production Build

npm run build

Architecture

The application is built using a modern full-stack architecture:

• Frontend: React Router v7 with Tailwind CSS.
• Backend: Express-based Node.js server for file system and code execution services.
• Styling: Strict monochrome design system for high-contrast visibility.