The Kotlin Programming Language.

Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

A shadowsocks client for Android

A V2Ray client for Android, support Xray core and v2fly core

Alibaba Java Coding Guidelines pmd implements and IDE plugin

A memory leak detection library for Android.

The Google I/O Android App

基于无障碍，高级选择器，订阅规则的自定义屏幕点击 Android 应用 | An Android APP with custom screen tapping based on Accessibility, Advanced Selectors, and Subscription Rules

Using system APIs directly with adb/root privileges from normal apps through a Java process started with app_process.

IdeaVim – A Vim engine for JetBrains IDEs

A modern I/O library for Android, Java, and Kotlin Multiplatform.

A simple and modern Java and Kotlin web framework

The Functional toolkit for Kotlin HTTP applications. http4k provides a simple and uniform way to serve, consume, and test HTTP services.

Markdown language support for IntelliJ IDEA.