Tristan Rothman

flare-auth. Cloudflare-native authentication for Workers. D1 + KV, zero dependencies, WebCrypto only.

postgres-kotlin-gen. Generate kotlinx.serialization data classes directly from a Postgres/Supabase schema

compose-desktop-native. Compose Desktop for native target using SDL3

serve-sim. The `npx serve` of Apple Simulators.

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.

mise. dev tools, env vars, task runner

compose-ai-tools. Helping the Agents Compose the Things

cloudflare-kmp. Kotlin Multiplatform SDK and Worker gateway for Cloudflare D1, KV, R2, and realtime apps

openai-kmp. Kotlin Multiplatform SDK for OpenAI APIs

ministack. Ministack: Free, open-source local AWS emulator - 55+ services, Terraform compatible, real databases. Free forever. MIT licensed.

android-testing-skills. ⚡️ A set of skills for Android testing: Compose UI, AndroidX Test, JVM unit tests, and ADB.

CodeWhale. Open-source, community-driven agent harness

compose-animations. ⚡️ A collection of Jetpack Compose animations for the best practices. Tweak literals at the top of any file, save, and watch the motion morph in real-time.

namastack-outbox. Outbox Implementation for Spring Boot

structured-coroutines. The definitive toolkit for enforcing safety, predictability, and efficiency in Kotlin Coroutines.

andrej-karpathy-skills. A single CLAUDE.md file to improve Claude Code behavior, derived from Andrej Karpathy's observations on LLM coding pitfalls.

FinceptTerminal. FinceptTerminal is a modern finance application offering advanced market analytics, investment research, and economic data tools, designed for interactive exploration and data-driven decision-making in a user-friendly environment.

jvm-skills. HTML

android-skills-mcp. An MCP server and CLI packager for official Android skills.

skills. Python

ComposeReorderable. Enables reordering by drag and drop in Jetpack Compose (Desktop) LazyList & LazyGrid.

claude-code-best-practice. from vibe coding to agentic engineering - practice makes claude perfect

Nucleus. Nucleus is the native desktop platform for the JVM. Combined with Compose Multiplatform, it forms the most complete, most performant, and most deeply integrated desktop application stack ever built — on any language, any runtime, any platform.

interface-design. Design engineering for Claude Code. Craft, memory, and enforcement for consistent UI.

mappy. 🧭 Mappy is an Annotation Processor to auto-generate mapper functions for your architecture layer models. It creates mappers for database Entities and UI models.

spin. Spin is the open source developer tool for building and running serverless applications powered by WebAssembly.

stitch-skills. A library of Agent Skills designed to work with the Stitch MCP server. Each skill follows the Agent Skills open standard, for compatibility with coding agents such as Antigravity, Gemini CLI, Claude Code, Cursor.

claude-mem. Persistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More

taikai. Taikai is an extension of the popular ArchUnit library, offering a comprehensive suite of predefined rules tailored for various technologies.

autoservice-ir. Prototype implementation of a Kotlin IR based generator for java.util.ServiceLoader-style service providers

kmp-resilient. A Kotlin Multiplatform library providing resilience patterns (Timeout, Retry, Circuit Breaker, Rate Limiter, Bulkhead, Hedging, Cache, Fallback) for suspend functions. Compose them declaratively with a small DSL and observe runtime telemetry via Flow.

Compose-Animations. A Repo To showcase Collection of animations in jetpack compose

zerobrew. A 5-20x faster experimental Homebrew alternative

ECC. The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

KtRs. Kotlin/Rust interop demo

kmpworkmanager. KMP WorkManager - Unified API for scheduling and managing background tasks—one‑off, periodic, exact and chained jobs—featuring advanced triggers, structured logging, event‑driven completion, demo UI and docs.

KScan. Compose Multiplatform Barcode Scanning

arcforge. Your ultimate ARC Raiders forge: visualize crafting networks, discover item relationships, master the ecosystem, and more

weatherapp. Kotlin

kmp-live-activity. Provides a Live Activity API for Kotlin Multiplatform.

a2ui. TypeScript

kanidm. Kanidm: A simple, secure, and fast identity management platform

Kompress. Compression and archiver APIs for Kotlin Multiplatform.

aoc-kotlin-notebook. Advent of Code template and interactive framework for Kotlin Notebook

h3-kmp. A library to convert Uber's H3 geo-index to LatLng vertices and back for Kotlin Multiplatform: iOS, Android, WASM

compose-stability-analyzer. 🦄 Real-time analysis of Jetpack Compose composable functions' stability directly within Android Studio and IntelliJ.

zodable. Generate zod schemas from Kotlin data classes.

compose-stability-inference. 📚 A comprehensive study of how the Compose compiler determines type stability for recomposition optimization.

placeholder-compose. ✨ Fully customizable placeholder loading effects for Jetpack Compose and KMP.

compose-exploded-layers. Create 3D-style exploded layer effects in Jetpack Compose

proguard. ProGuard, Java optimizer and obfuscator

doodle. A pure Kotlin UI framework for the Web and Desktop.

FantasyPremierLeague. Fantasy Premier League Kotlin/Compose Multiplatform sample

bootrack. :skull: Paranormal issue tracker desktop app backed by Exposed and Ktor

embabel-agent. Agent framework for the JVM. Pronounced Em-BAY-bel /ɛmˈbeɪbəl/

FlowMVI. Architecture Framework for Kotlin. Reuse every line of code. Handle all errors automatically. No boilerplate. Build features in minutes. Analytics, metrics, debugging in 3 lines of code. Make all code thread-safe. 50+ features.

kmapper. Kotlin object mapper

Knee. Seamless two-way communication between Kotlin/Native and Kotlin/JVM. Supports suspend functions, classes, interfaces, no-copy buffers and much more.

S3Mock. A mock implementation of the AWS S3 API startable as Docker image, TestContainer, JUnit Jupiter extension or TestNG listener

Mokkery. The mocking library for Kotlin Multiplatform, easy to use, boilerplate-free and compiler plugin driven.

doma-spring-boot. Spring Boot Support for Doma

ComposeFlow. ComposeFlow - Build native mobile apps effortlessly

BeenoApp. A tiny macOS utility that mirrors an external monitor in a resizable window.

kc2025-app. Kotlin

konform. Portable validations for Kotlin

KotlinNotebookExamples. Kotlin Notebook Examples used for showcasing its power 🪄

gobley. Embed Rust into your Kotlin Multiplatform project

kotlin-sdk. The official Kotlin SDK for Model Context Protocol servers and clients. Maintained in collaboration with JetBrains

Pokedex. Pokedex - a Kotlin Multiplatform app, built with Compose multiplatform, Coroutines, Flow, Koin, Ktor, SqlDelight, Decompose, MVIKotlin, and Material 3 based on MVI architecture

vaultwarden. Unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs

Storytale. Kotlin

containerization. Containerization is a Swift package for running Linux containers on macOS.

NuProcess. Low-overhead, non-blocking I/O, external Process implementation for Java

gallery. A gallery that showcases on-device ML/GenAI use cases and allows people to try and use models locally.

seskar. Kotlin/JS sugar

kelp. Kelp is an Android Studio plugin that enhances support for custom design systems written using Jetpack Compose

1time. Lightweight, thread-safe Java/Kotlin TOTP (time-based one-time passwords) and HOTP generator and validator for multi-factor authentication valid for both prover and verifier based on shared secret

koog. Koog is a JVM (Java and Kotlin) framework for building predictable, fault-tolerant and enterprise-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-browser environments. Koog is based on our AI products expertise and provides proven solutions for complex LLM and AI problems

ml-fastvlm. This repository contains the official implementation of "FastVLM: Efficient Vision Encoding for Vision Language Models" - CVPR 2025

app-platform. A lightweight application framework for state and memory management suitable for Kotlin Multiplatform projects.

ClickHouse. ClickHouse® is a real-time analytics database management system

minlz. MinLZ is a LZ77 compressor, focused on realtime data compression

inngest-kt. Kotlin/Java SDK for Inngest

classgraph. An uber-fast parallelized Java classpath scanner and module scanner.

pods4k. Performance-oriented Data Structures for Kotlin

agent-starter-pack. Ship AI Agents to Google Cloud in minutes, not months. Production-ready templates with built-in CI/CD, evaluation, and observability.

github-mcp-server. GitHub's official MCP Server

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

storyboard. Library for building presentations using Compose Multiplatform.

ktor-klip. Library improvement proposals for new features in Ktor

jsonforms-kotlin. Kotlin Multiplatform implementation of the JSONForms standard from the Eclipse Foundation

pgflow. Postgres-centric workflow engine with deep integration with Supabase

Kotlin-AI-Examples. A collection of Kotlin-based examples featuring AI frameworks such as Spring AI, LangChain4j, and more — complete with Kotlin notebooks for hands-on learning.

pack. 🤖→📦 | Pack Android Resources into APKs/AABs from WebAssembly without Studio or the SDK

SpacetimeDB. Development at the speed of light

typescript-go. Staging repo for development of native port of TypeScript

browser-use. 🌐 Make websites accessible for AI agents. Automate tasks online with ease.

VoiceInk. The best open-source alternative to Superwhisper & Wispr Flow. Voice-to-text app for macOS with no subscription

Mesh. Mesh gradient editor in Compose Desktop

neverthrow. Type-Safe Errors for JS & TypeScript

sdk-java. Restate SDK for JVM Languages

desktop. Welcome to a calmer internet

DeskPad. A virtual monitor for screen sharing

docker-static-website. A very small Docker image (~80KB) to run any static website

alchemist. Type safe management and arithmetic of physical units. Inspired by kotlin.time.Duration.

ladybird. Truly independent web browser

kompendium. Ktor OpenAPI Spec Generator

sqlx4k. A coroutine-first SQL toolkit with compile-time query validations for Kotlin Multiplatform. PostgreSQL, MySQL/MariaDB, and SQLite supported.

ktfmt. A program that reformats Kotlin source code to comply with the common community standard for Kotlin code conventions.

ozone. Kotlin Multiplatform bindings for Bluesky

compose-hot-reload. Compose Hot Reload: Make changes to your UI code in a Compose Multiplatform application, and see the results in real time. No restarts required. Compose Hot Reload runs your application on the JetBrains Runtime and intelligently reloads your code whenever it is changed.

buf. The best way of working with Protocol Buffers.

kamal. Deploy web apps anywhere.

spring-boot-admin. Admin UI for administration of spring boot applications

redb. An embedded key-value database in pure Rust

carbon-compose. IBM's Carbon design system implementation in Compose Multiplatform

restate-web-ui. Restate Web UI

esp32-kotlin. Kotlin

kmp-sample-template. A minimal Kotlin & Compose Multiplatform template designed to build applications for both Android and iOS.

kmp-developer-roadmap. 🗺 The Kotlin Multiplatform Developer Roadmap offers comprehensive learning paths to help you understand KMP ecosystems.

saas-starter. Get started quickly with Next.js, Postgres, Stripe, and shadcn/ui.

FlexibleBottomSheet. 🐬 Advanced Compose Multiplatform bottom sheet for segmented sizing, non-modal type, and allows interaction behind the bottom sheet similar to Google Maps.

server-driven-compose. 🧙 Server Driven Compose showcases server-driven UI approaches in Jetpack Compose with Firebase.

Result. The modelling for success/failure of operations in Kotlin and KMM (Kotlin Multiplatform Mobile)

compose-placeholder. A Compose Multiplatform library which provides a modifier for display 'placeholder' UI while content is loading.

measured. Intuitive, type-safe units of measure

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

colormath. Multiplatform Kotlin color conversion and manipulation

expo. An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

Calf. Calf is a library that allows you to easily create adaptive UIs and access platform specific APIs with Compose Multiplatform (Adaptive UI, File Picker, WebView, Permissions...).

react-native-compressor. 🗜️Compress Image, Video, and Audio same like Whatsapp 🚀✨

cloudstream. Android app for streaming and downloading media.

style-aligned. Official code for "Style Aligned Image Generation via Shared Attention"

qrose. Styled QR & Barcode generation library for Compose Multiplatform and Jetpack Compose

sentry-java. A Sentry SDK for Java, Android and other JVM languages.

xodus. Transactional schema-less embedded database used by JetBrains YouTrack and JetBrains Hub.

multitenant-oauth2-spring-boot-starter. Spring Boot starter library for multi-tenant OAuth2 resource servers (Spring Boot 3, Spring Security 6)

lyricist. 🌎 The missing I18N/L10N (internationalization/localization) multiplatform library for Compose Multiplatform!

datadog-kmp-sample. Sample project for the Datadog KMP library.

meeting-room-compose. 🎙️ A real-time meeting room app built with Jetpack Compose to demonstrate video communications.

konsist. Konsist is a powerful static code analyzer tailored for Kotlin, focused on ensuring codebase consistency and adherence to coding conventions.

svg-to-compose-intellij. A simple Android Studio plugin to generate Jetpack Compose ImageVector icons and preview them

penpot. Penpot: The open-source design platform for Product teams that need scalable collaboration.

compose-rules. Lint rules for ktlint/detekt aimed to contribute to a healthier usage of Compose. Actively maintained and evolved fork of the Twitter Compose rules.

compose-lints. Lint checks to aid with a healthy adoption of Compose

kotlin-explorer. Desktop tool to quickly explore disassembled Kotlin code.

material3-windowsizeclass-multiplatform. Material 3 Window Size Class for Compose Multiplatform

compose-stable-marker. ✒️ Compose stable markers for KMP to tell stable/immutable guarantees to the compose compiler.

compose-report-to-html. A utility (Gradle Plugin + CLI) to convert Jetpack Compose compiler metrics and reports to beautified HTML page.

commit_message_generation. 🌟 replication package for 📜 From Commit Message Generation to History-Aware Commit Message Completion, ASE 2023

dowel. A Kotlin Symbol Processor to generate Compose PreviewParameterProviders

awesome-kotlin-multiplatform. 🕶️ A curated list of awesome Kotlin Multiplatform projects.

PreCompose. Compose Multiplatform Navigation && State Management

webrtc-kmp. WebRTC Kotlin Multiplatform SDK

kotlinx-io-explorations. Kotlinx-io explorations

kotlinx-io. Kotlin multiplatform I/O library

kraphviz. Graphviz for Kotlin Multiplatform

KStore. A tiny Kotlin multiplatform library that assists in saving and restoring objects to and from disk using kotlinx.coroutines, kotlinx.serialisation and kotlinx.io

Catalog. Generate type-safe, user-friendly extensions to resolve Android resources.

sqldelight-sqlite-wasm. Experimenting with SQLite WASM running with SQLDelight

animated-garden. exploration of compose animation & compose multiplatform based on the "composable sheep" talk series

kim. Image metadata manipulation library for Kotlin Multiplatform

swift-klib-plugin. Gradle Plugin for injecting Swift code into Kotlin Multiplatform Mobile shared module

synk. A Kotlin multiplatform CRDT library for offline first applications

data2viz. An Android, JavaFx, JS multiplatform datavisualization library with comprehensive DSL

combo-breaker. Text layout for Compose to flow text around arbitrary shapes.

compose-pokedex. Pokedex on Jetpack Compose

compose-cupertino. Compose Multiplatform UI components for iOS (Cupertino Widgets)

ios-compose-showcase. Project for practicing skills in KMM and IOS compose

agrona. High Performance data structures and utility methods for Java

supertokens-core. Open source alternative to Auth0 / Firebase Auth / AWS Cognito

telephoto. Building blocks for designing media experiences in Compose UI

buildable. Buildable is a code generation tool that automates the creation of mappers, factories, and state classes for Kotlin

api-guidelines. Best practices to consider when writing an API for your library

oshi. Native Operating System and Hardware Information

Mousai. Identify songs in seconds

wing. A programming language for the cloud ☁️ A unified programming model, combining infrastructure and runtime code into one language ⚡

digma. 🧑‍💻🔭 Digma helps you fix performance issues in your code by automatically profiling the code execution. Using APMs to identify code bottlenecks, query problems and scalability issues takes time and effort - Digma automates all of that. Digma is free for developers - get it here: https://digma.ai/get-digma/

ShapesDemo. Demo apps showing how to use the AndroidX :graphics:graphics-shapes: library

quiver. Quiver is a collection of extension methods and handy functions to make the wonderful functional programming Kotlin library, Arrow, even better.

compose-imageloader. Compose Image library for Kotlin Multiplatform.

midjourney-images-compose-multiplatform. This application is developed to display the images created by MidJourney. The application is developed with Compose Multiplatform and works on many platforms including Android and iOS platforms.

Foodium-KMM. 📱Sample application built to demonstrate the use of Kotlin Multiplatform Mobile for developing Android and iOS applications using Jetpack Compose 🚀.

Kicks. A Kotlin Multiplatform Mobile simple music streaming app

compose-multiplatform-template. Compose Multiplatform Application project template

spring-beans-visualized. Spring Beans Visualized: View Your Beans at Runtime

NYTimes-KMP. A KMP template of the New York Times App using Compose multiplatform for Android, Desktop, iOS and Web

NewsKit. The NewsKit Design system

Confetti. KMP/CMP GraphQL based conference project with Jetpack Compose Android, Compose for Wear, and Compose Multiplatform Desktop, Web and iOS clients along with GraphQL backend.

kwordle. Kotlin

assertk. assertions for kotlin inspired by assertj

smooth-corner-rect-android-compose. Android Jetpack Compose Library that implements mathematically accurate Squircles/Superellipses to be used by composables and themes.

twemoji-desktop. Kotlin

Saku-Compose-Sudoku. Sudoku made with Jetpack Compose Android

diagrams. :art: Diagram as Code for prototyping cloud system architectures

video4j. Video Processing Library for Java

uri-kmp. A library for working with URIs and URLs in Kotlin Multiplatform

gts. ☂️ TypeScript style guide, formatter, and linter.

capillary-kmp. A Kotlin Multiplatform library to support end to end encryption.

tailwind-activity-template. For students to practice with NPM and using tailwind