Open source. Open possibilities.

A CLI tool that scans for node_modules directories across your system, displays their sizes, and lets you interactively delete them to free up disk space.

Node.js CLI bot that scans ETH/USDC prices on Chainlink, Uniswap V2, SushiSwap, Curve and Balancer and triggers flash-loan arbitrage through a smart contract when the spread reaches 0.9%. Includes an interactive menu for wallet setup, protocol choice and loan amount.

A web-based tool that connects a MetaMask wallet to a CodePen environment to deploy an Ethereum smart contract for automated cryptocurrency trading. Users fund the contract with ETH and the interface provides trade logs and a withdrawal button.

Hyper is an open-source terminal emulator built on open web standards, offering an extensible, customizable command-line experience with plugins and themes.

English README for a Node.js CLI bot that monitors ETH/USDC prices across DeFi platforms and attempts flash-loan arbitrage via a smart contract, with wallet setup, protocol selection, a 0.9% spread threshold, and risk warnings.

Block is a local-first polyglot orchestration engine for writing multi-language workflows—Python, JavaScript, Lua, PHP, SQL, PowerShell—in single .blk files. It coordinates host runtimes, passes serializable shared state between blocks, and runs on Windows via CLI. Editions: Lite, Standard, Plus.

Repomix packs an entire repository into a single AI-friendly file (XML, Markdown, JSON, or plain text) for feeding codebases into LLMs like Claude, ChatGPT, and Gemini. It offers token counting, security checks, code compression, and remote repository support.

A Winston plugin for the modern-errors library that adds fullFormat() and shortFormat() helpers for improved error logging. It supports configurable stack traces, log levels, nested errors, and JSON-safe output for Node.js applications.

A collection of common interactive command line user interfaces for Node.js.

zx is a tool for writing scripts using JavaScript, providing cross-platform wrappers around child_process with argument escaping and sensible defaults.

Switchy is a Node.js command-line tool for managing local Git repositories stored across different locations. It lets users initialize storage, add, list, find, remove, update and clear repository entries, and open the last used or a named repository.

A Node.js command-line script that, per its README, polls ETH/USDC prices across Chainlink, Uniswap V2, SushiSwap, Curve and Balancer and triggers flash-loan arbitrage through a smart contract when the spread reaches 0.9%.

A pre-research hook for Claude Code: it runs Haiku to explore your codebase with Glob, Grep, Read and Git tools, then injects a structured findings block as context before Opus or Sonnet responds, with caching and skip detection.

A Node.js CLI bot that compares ETH/USDC prices from Chainlink, Uniswap V2, SushiSwap, Curve and Balancer and triggers flash-loan arbitrage through a smart contract once the spread reaches 0.9%. Includes wallet creation or import, an interactive menu and live price monitoring.

FlashLoanArbitrage is a Node.js command-line bot that polls ETH/USDC prices on Chainlink, Uniswap V2, SushiSwap, Curve and Balancer, and triggers a flash-loan arbitrage smart contract when the spread reaches 0.9% or more.

A Node.js command-line bot that scans ETH/USDC prices across five DeFi price sources and triggers a flash-loan arbitrage contract when the spread reaches 0.9%. The README covers wallet setup, an interactive menu and risk warnings.

A code beautifier for JavaScript, CSS, and HTML that reformats and re-indents code with extensive configuration options. Available as a CLI tool, Node.js library, Python package, and web library.

A high-performance, frontend terminal component for the browser, supporting GPU acceleration, Unicode, and rich terminal features like mouse events and CJK characters.

guessit-js is a TypeScript port of Python guessit that extracts metadata (title, year, season, episode, codec, language, etc.) from media filenames. It is 100% compatible with Python guessit 4.4.0, 3.5x faster, and provides a CLI, REST API, and WASM support.

2024 Programming Challenges Roadmap: step-by-step exercises, solutions, videos, and rankings. Use any language and contribute your solutions.