Sites like ayfri.com

MapStruct is a Java code generator project for simplifying bean-to-bean mappings, documented on its official project website

MockK, a mocking library for Kotlin unit and Android tests, with documentation on usage and troubleshooting

Koin, an open-source dependency injection framework for Kotlin and Kotlin Multiplatform, documented by Kotzilla and its contributors

springdoc-openapi documentation for generating OpenAPI 3 specs and Swagger UI in Spring Boot applications

A Swiss software company's site offering Java logging framework support, consulting and open-source project pages, run by QOS.CH Sarl in Vouvry

Typelevel is an open-source community developing Scala libraries for functional programming, with events and meetups

SDKMAN!, a command-line tool for installing and switching between multiple software development kits on Unix systems, with a catalogue of JDK distributions

JUnit, a open-source testing framework for Java and the JVM, with documentation, release notes and project information

CocoaPods.org is a search and browse index for iOS, macOS and Swift library packages, with pages on the CocoaPods dependency manager

Mocha, a JavaScript test framework for Node.js and browsers, with its project documentation and API reference

MSYS2 is a software distribution and build platform for Windows providing Unix-like tools, compilers and package management documentation

MapLibre is an umbrella organization developing open-source mapping libraries and tools for web, mobile and vector tiles

Yarn, a JavaScript package manager; its documentation and API reference for the @yarnpkg packages

A Spanish and Portuguese documentation site for Socket.IO, a library for real-time bidirectional communication between clients and servers