Kevin Hermawan

serena. A powerful MCP toolkit for coding, providing semantic retrieval and editing capabilities - the IDE for your agent

agent-framework. A framework for building, orchestrating and deploying AI agents and multi-agent workflows with support for Python and .NET.

smolagents. 🤗 smolagents: a barebones library for agents that think in code.

container. A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon.

ruflo. 🌊 The leading agent meta-harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, RAG integration, and native Claude Code / Codex / Hermes and many more Integrated

rtk. CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

oxipng. Multithreaded PNG optimizer written in Rust

libavif. libavif - Library for encoding and decoding .avif files

arrow-swift. Official Swift implementation of Apache Arrow

langextract. A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.

swift-sdk. The official Swift SDK for Model Context Protocol servers and clients.

SwiftAgent. A type-safe, declarative AI agent framework for Swift. Build composable AI pipelines with Steps, Agents, structured outputs, and tool integration. Features FIFO session management, MCP support, and distributed actor communication.

react-scan. Scan and fix React performance issues

cpython. The Python programming language

outlines. Structured Outputs

ModernBERT. Bringing BERT into modernity via both architecture changes and scaling

ghostty. 👻 Ghostty is a fast, feature-rich, and cross-platform terminal emulator that uses platform-native UI and GPU acceleration.

porffor. An ahead-of-time JavaScript compiler

PDFMathTranslate. [EMNLP 2025 Demo] PDF scientific paper translation with preserved formats - 基于 AI 完整保留排版的 PDF 文档全文双语翻译，支持 Google/DeepL/Ollama/OpenAI 等服务，提供 CLI/GUI/MCP/Docker/Zotero

ImageMagick. ImageMagick is a free, open-source software suite for creating, editing, converting, and displaying images. It supports 200+ formats and offers powerful command-line tools and APIs for automation, scripting, and integration across platforms.

markitdown. Python tool for converting files and office documents to Markdown.

oniguruma. regular expression library

swift-atomics. Low-level atomic operations for Swift

SideMenu. Simple side/slide menu control for iOS, no code necessary! Lots of customization. Add it to your project in 5 minutes or less.

rapidcsv. C++ CSV parser library

executorch. On-device AI across mobile, embedded and edge for PyTorch

mermaid. Generation of diagrams like flowcharts or sequence diagrams from text in a similar manner as markdown

swift-view-to-image. Convert SwiftUI views to images in a variety of formats

IOPaint. Image inpainting tool powered by SOTA AI Model. Remove any unwanted object, defect, people from your pictures or erase and replace(powered by stable diffusion) any thing on your pictures.

oniguruma-to-es. 👹 Convert patterns from Oniguruma (the regex flavor used by Ruby, TextMate grammars, etc.) to native JavaScript RegExp

Highlightr. iOS & OSX Syntax Highlighter.

WasmKit. WebAssembly Runtime written in Swift

unsloth. Unsloth Studio is a web UI for training and running open models like Gemma 4, Qwen3.6, DeepSeek, gpt-oss locally.

keychain-swift. Helper functions for saving text in Keychain securely for iOS, OS X, tvOS and watchOS.

ETTrace. Easily and accurately profile iOS apps

SoulverCore. A powerful Swift framework for evaluating natural language math expressions

swarm. Educational framework exploring ergonomic, lightweight multi-agent orchestration. Managed by OpenAI Solution team.

SwiftPackageIndex-Server. The Swift Package Index is the place to find and explore Swift packages

swift-ai-model-retriever. A utility for retrieving AI model information from various providers. Supports Anthropic, Cohere, Google, Ollama, and OpenAI (including OpenAI-compatible APIs).

swift-lemon-squeezy-license. A simple and intuitive way for interacting with the Lemon Squeezy License API in Swift

swift-llm-chat-anthropic. Interact with Anthropic and Anthropic-compatible chat completion APIs in a simple and elegant way. Supports vision, prompt caching, and more.

searxng. SearXNG is a free internet metasearch engine which aggregates results from various search services and databases. Users are neither tracked nor profiled.

whoogle-search. A self-hosted, ad-free, privacy-respecting metasearch engine

swift-json-schema. A convenient way to define JSON Schema in Swift

swift-llm-chat-openai. Interact with OpenAI and OpenAI-compatible chat completion APIs in a simple and elegant way. Supports Cohere V2, Groq, Ollama, OpenRouter, Together AI, Perplexity, and more.

django-storages. https://django-storages.readthedocs.io/

django. The Web framework for perfectionists with deadlines.

gamal. Research tool leveraging LLM for answers

SwiftAnthropic. An open-source Swift package for interacting with Anthropic's public API.

LaunchAtLogin-Modern. Add “Launch at Login” functionality to your macOS app in seconds

Lightbox. :milky_way: A convenient and easy to use image viewer for your iOS app

CocoaPods. The Cocoa Dependency Manager.

zustand. 🐻 Bear necessities for state management in React

llamafile. Distribute and run LLMs with a single file.

objectbox-swift. Swift database - fast, simple and lightweight (iOS, macOS)

mlc-llm. Universal LLM Deployment Engine with ML Compilation

reader. Convert any URL to an LLM-friendly input with a simple prefix https://r.jina.ai/

torchchat. Run PyTorch LLMs locally on servers, desktop and mobile

web-llm. High-performance In-browser LLM Inference Engine

STTextView. Performant and reusable text view component (TextKit 2), with line numbers and more. UITextView / NSTextView replacement.

KeyboardShortcuts. ⌨️ Add user-customizable global keyboard shortcuts (hotkeys) to your macOS app in minutes

turndown. 🛏 An HTML to Markdown converter written in JavaScript

KeychainAccess. Simple Swift wrapper for Keychain that works on iOS, watchOS, tvOS and macOS.

MoA. Together Mixture-Of-Agents (MoA) – 65.1% on AlpacaEval with OSS models

agentify. Create and install AI agents to automate your tasks

llama-cookbook. Welcome to the Llama Cookbook! This is your go to guide for Building with Llama: Getting started with Inference, Fine-Tuning, RAG. We also show you how to solve end to end problems using Llama model family and using them on various provider services

mem0. Universal memory layer for AI Agents

RouteLLM. A framework for serving and evaluating LLM routers - save LLM costs without compromising quality

cake. Distributed inference for mobile, desktop and server.

driver.js. A lightweight, dependency-free JavaScript library for guiding user focus across the page.

pytube. Lightweight, dependency-free Python library and CLI for downloading YouTube videos, playlists, and captions.

python-markdownify. Convert HTML to Markdown

swift-testing. A modern, expressive testing package for Swift

firecrawl. The API to search, scrape, and interact with the web at scale. 🔥

Streamlit-Authenticator. A secure authentication module to manage user access in a Streamlit application.

streamlit-shadcn-ui. Using shadcn-ui components in streamlit

dify. Production-ready platform for agentic workflow development.

wasmer. 🚀 Fast, secure, lightweight containers based on WebAssembly

mactop. mactop - Apple Silicon Monitor Top

pyenv. Simple Python version management

USearch. Fast Open-Source Search & Clustering engine × for Vectors & Arbitrary Objects × in C++, C, Python, JavaScript, Rust, Java, Objective-C, Swift, C#, GoLang, and Wolfram 🔍

faiss-mobile. FAISS library compiled for iOS, macOS, tvOS, watchOS

faiss. A library for efficient similarity search and clustering of dense vectors.

exporters. Export Hugging Face models to Core ML and TensorFlow Lite

argmax-oss-swift. On-device Speech AI for Apple Silicon

async-http-client. HTTP client library built on SwiftNIO

typespec. Java

gateway. A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API.

hyperfine. A command-line benchmarking tool

typehere. Open source Super clean & simple Form building & Survey 🍕

swift-argument-parser. Straightforward, type-safe argument parsing for Swift

llama.cpp. LLM inference in C/C++

st_pages. An experimental version of Streamlit Multi-Page Apps

mlx-swift. Swift API for MLX

streamlit. Streamlit — A faster way to build and share data apps.

gradio. Build and share delightful machine learning apps, all in Python. 🌟 Star to support our work!

enchanted. Enchanted is iOS and macOS app for chatting with private self hosted language models such as Llama2, Mistral or Vicuna using Ollama.

notesollama. Use Ollama to talk to local LLMs in Apple Notes

SwiftSoup. SwiftSoup: Pure Swift HTML Parser, with best of DOM, CSS, and jquery (Supports Linux, iOS, Mac, tvOS, watchOS)

mlx. MLX: An array framework for Apple silicon

ollama-python. Ollama Python library

shiki. A beautiful yet powerful syntax highlighter

hurl. Hurl, run and test HTTP requests with plain text.

pkg-size.dev. 📦🔍 Find the true size of an npm package

SelectableText. A view that displays one or more lines of read-only selectable text

SwiftyMarkdown. Converts Markdown files and strings into NSAttributedStrings with lots of customisation options.

english-words. :memo: A text file containing 479k English words for all your dictionary/word-based projects e.g: auto-completion / autosuggestion

zed. Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

shikiji. A syntax highlighter based on TextMate grammars. ESM rewrite of shiki, with more features and capabilities.

wasm3. 🚀 A fast WebAssembly interpreter and the most universal WASM runtime

CodeEditSourceEditor. A code editor view written in Swift powered by tree-sitter.

hummingbird. Lightweight, flexible HTTP server framework written in Swift

homebrew-cask. 🍻 A CLI workflow for the administration of macOS applications distributed as binaries

similarity-search-kit. 🔎 SimilaritySearchKit is a Swift package providing on-device text embeddings and semantic search functionality for iOS and macOS applications.

AlertKit. Native alert from Apple Music & Feedback. Contains Done, Heart & Message and other presets.

swift-transformers. Swift Package to implement a transformers-like API in Swift

CodeEditorView. SwiftUI code editor view for iOS, visionOS, and macOS

Canvas. DALL·E playground for the Mac

swift-composable-architecture. A library for building applications in a consistent and understandable way, with composition, testing, and ergonomics in mind.

periphery. A tool to identify unused code in Swift projects.

swiftui-introspect. Introspect underlying UIKit/AppKit components from SwiftUI

ChatField. A versatile, multiline text input component for chat interfaces in SwiftUI

swiftui-navigation-transitions. Pure SwiftUI Navigation transitions ✨

Pow. Delightful SwiftUI effects for your app

ViewState. An extension that provides essential state modifiers to SwiftUI views

ContainerViews. A collection of reusable SwiftUI container views

AppInfo. A utility for accessing application metadata from Info.plist

ViewCondition. An extension to the View protocol that provides conditional view modifiers

OpenAI. Swift community driven package for OpenAI public API

Defaults. 💾 Swifty and modern UserDefaults

tsup. The simplest and fastest way to bundle your TypeScript libraries.

Parchment. A paging view with a highly customizable menu ✨

AppIconView. A SwiftUI view for presenting and changing iOS app icons effortlessly

OllamaKit. Ollama client for Swift

create-dmg. Create a good-looking DMG for your macOS app in seconds

app-store-scraper. scrape data from the itunes app store

google-play-scraper. Node.js scraper to get data from Google Play

Ollamac. Mac app for Ollama

ProvisionQL. Quick Look plugin for mobile apps and provisioning profiles

Sparkle. A software update framework for macOS

swift-markdown-ui. Maintenance mode — new development in Textual: https://github.com/gonzalezreal/textual

ratelimit-js. Rate limiting library for serverless runtimes

ui. A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

slidev. Presentation Slides for Developers

tauri. Build smaller, faster, and more secure desktop and mobile applications with a web frontend.

SwiftAudioEx. SwiftAudioEx is an iOS audio player written in Swift, making it simpler to work with audio playback from streams and files.

transformers.js. State-of-the-art Machine Learning for the web. Run 🤗 Transformers directly in your browser, with no need for a server!

ViewInspector. Runtime introspection and unit testing of SwiftUI views

SwiftUIX. An exhaustive expansion of the standard SwiftUI library.

usehooks. A collection of modern, server-safe React hooks – from the ui.dev team

react-swipeable. React swipe event handler hook

ariakit. Toolkit with accessible components, styles, and examples for your next web app

fastlane. 🚀 The easiest way to automate building and releasing your iOS and Android apps

LicensePlist. A license list generator of all your dependencies for iOS applications

WhatsNewKit. Showcase your awesome new app features 📱

bun. Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

tremor-npm. React components to build charts and dashboards

openai-node. Official JavaScript / TypeScript library for the OpenAI API

zig. Moved to Codeberg

biome. A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

Dexie.js. A Minimalistic Wrapper for IndexedDB

langchainjs. The agent engineering platform

mafs. React components for interactive math

ollama. Get up and running with Kimi-K2.6, GLM-5.1, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.

tsx. ⚡️ TypeScript Execute | The easiest way to run TypeScript in Node.js

whisper. Robust Speech Recognition via Large-Scale Weak Supervision

zavi.family. A monorepo containing all applications under zavi.family domain.

node-google-spreadsheet. Google Sheets API wrapper for Javascript / Typescript

whisper.cpp. Port of OpenAI's Whisper model in C/C++

private-gpt. Complete API layer for private AI applications on local models: RAG, skills, tools, MCP, text-to-sql, and more. Works with any OpenAI-compatible inference server.

citation-js. Core functionality of Citation.js, as well as the original plugins (CSL, BibTeX, RIS, DOI, Wikidata, and BibJSON)

the-algorithm. Source code for the X Recommendation Algorithm

ztorage. A type-safe wrapper for key-value storage in JavaScript

runo. A CLI tool that simplifies the process of running command line scripts, similar to npm scripts but for any type of project

feather. Simply beautiful open-source icons

typedoc. Documentation generator for TypeScript projects.

TypeScript. TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

react-wrap-balancer. Simple React Component That Makes Titles More Readable

umami. Umami is a modern, privacy-focused analytics platform. An open-source alternative to Google Analytics, Mixpanel and Amplitude.

zod. TypeScript-first schema validation with static type inference

plaiceholder. Beautiful image placeholders, without the hassle.

markup2json. A library for converting HTML and XML into JSON

xmldom. A pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module.

tools. Unified developer tools for JavaScript, TypeScript, and the web

shuffly. A JavaScript utility for shuffling arrays

swr. React Hooks for Data Fetching

next.js. The React Framework

strpolate. Fast string interpolation with built-in type validation

sortire. A collection of popular sorting algorithms for JavaScript

remix-utils. A set of utility functions and types to use with Remix.run

HorizonCalendar. A declarative, performant, iOS calendar UI component that supports use cases ranging from simple date pickers all the way up to fully-featured calendar apps.

swift-package-manager. The Package Manager for the Swift Programming Language

swift-navigation. Bringing simple and powerful navigation tools to all Swift platforms, inspired by SwiftUI.

Nuke. Image loading system

SnapKit. A Swift Autolayout DSL for iOS & OS X

Charts. Beautiful charts for iOS/tvOS/OSX! The Apple side of the crossplatform MPAndroidChart.

CoreStore. Unleashing the real power of Core Data with the elegance and safety of Swift

JavaScript. Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.

Python. All Algorithms implemented in Python

tldr. Collaborative cheatsheets for console commands 📚.