Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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spinner
A lightweight Go library that adds a configurable terminal spinner or progress indicator to any CLI application, with 90 built-in character sets.
Supabase CLI
Run the full Supabase stack locally and ship migrations, edge functions, and types from your terminal.
umzug
Framework-agnostic migration tool for Node.js with a clean, typed API for running and rolling back migrations.
citty
A zero-dependency, type-safe CLI framework for Node.js built on native util.parseArgs, with nested subcommands, lifecycle hooks, and a plugin system.
jsonschema
A compliant, dependency-light Go library for compiling and validating JSON Schema across five draft versions, with rich hierarchical errors.
termcolor
ANSI color formatting for terminal output in Python
openai-codex-cli-bin
Platform-specific wheel that bundles the compiled Codex CLI binary for pip-based installs of OpenAI's terminal coding agent.
Yarn
A fast, reliable, and secure dependency manager for JavaScript projects, caching every download for deterministic, offline-capable installs.
portable-pty
Cross-platform Rust API for pseudo-terminals, with runtime-selectable implementations
IPython
A productive interactive Python shell with rich introspection, tab completion, and magic commands.
quicktype
Generate strongly-typed models and serializers from JSON, Schema, TypeScript, or GraphQL
Open Policy Agent (OPA)
Open source policy engine for unified authorization and compliance decisions across your stack.
npm
The default command-line package manager for Node.js and the JavaScript ecosystem
Anthropic Sandbox Runtime
Wraps any command in OS-native filesystem and network sandboxing, without requiring a container.
progressbar
A thread-safe, dependency-light progress bar and spinner library for Go CLI applications.
survey
Interactive, accessible command-line prompts for Go — select, input, confirm, and multi-select components for POSIX and Windows terminals.
kingpin
A fluent, type-safe command-line flag and argument parser for Go, with nested subcommands and rich usage help.
go-pretty
A Go library for rendering pretty console tables, lists, progress bars, and styled text with deep customization.
progress
A lightweight, dependency-free ASCII progress bar for Node.js command-line tools.
atmn
The command-line tool for managing Autumn pricing — define plans and features in TypeScript, then push, pull, and preview them without leaving the terminal.
Peggy
Parser generator for JavaScript using parsing expression grammars (PEG)
go-runewidth
Computes the terminal cell width of runes and strings, handling CJK, emoji, and combining characters correctly.
yargs-parser
The mighty, standalone option parser powering yargs
wcwidth
Measures the displayed width of Unicode strings in a terminal, so CLI/TUI output lines up correctly across CJK, emoji, and combining characters.
