Algorithm

• Algorithms written in Java
• Algorithms written in Javascript
• Algorithms written in Python

Android

• Android Developer Roadmap
• Android Guides - Android guides
• Sunflower - Android demo project illustrating best practices with Android Jetpack.
• Hilt - Dependency injection
• Room - Caching mechanism.
• Retrofit - API http network requests.
• OkHttp - Use as http client for logging interceptor.
• Moshi - Smaller and faster JSON serialization.
• Navigation Component - For screen navigation.
• Timber - Logging and crash reports.
• Glide - Image loader to views.
• Material Design - Google's material design ui.
• Store - Dropbox Store Kotlin library for async data loading and caching.
• Flexbox Layout - Flexbox for android
• PermissionDispatcher - Annotation-based API to handle runtime permissions
• Leakcanary - Memory leak detection for android
• Dexcount - Gradle plugin to report the number of method references in your APK on every build.
• Roboelectric - Android unit testing framework
• mockito-kotlin - Mockito in kotlin
• MockWebServer - Sample mocking webserver with OkHttp

iOS

• iOS Developer Roadmap
• Starscream - Websockets in swift for iOS and OSX
• PromiseKit - Promises for Swift
• CocoaLumberjack - Logging framework for Mac & iOS
• SwiftLint - Swift style and conventions
• ReSwift - Unidirectional data flow in Swift - Inspired by Redux
• Swift Cheatsheet
• Object Mapper - JSON Object mapping written in Swift

Javascript

• standard - Javascript style guide
• Airbnb Javascript Style Guide - Javascript style guide used by Airbnb
• javscript concepts - 33 concepts every JavaScript developer should know.
• inversifyJS - Dependency injection in javascript

Node.js

• PM2 - process manager
• PdfMake - Client/server side PDF printing in pure JavaScript
• Knex - A query builder for PostgreSQL, MySQL and SQLite3.
• Objection.js - SQL ORM
• bookshelf - Node.js ORM for PostgreSQL, MySQL and SQLite3 built on top of Knex.js.
• AJV - JSON schema validator
• Apisauce - low-fat wrapper for the amazing axios http client library

Go

• echo - web framework written in GoLang

Python

• Python Tutorial - Python bootcamp
• fastapi - Python 3.6 web framework
• django

React

• valtio - React proxy-state manager

Server Stuffs

• System Design - System Design cheatsheet
• Socket IO - Socket IO for realtime bidirectional event-based communication.
• public APIs - List of APIs available to public.
• public APIs - Another list of public APIs
• Slate - for api documentation

Tools

• Gitignore - .gitignore for different type of projects
• Watchman - Watches files and records, or triggers actions, when they change.
• robotjs - Node.js Desktop automation.

Others

• Ungoogled Chromium
• Node-RED - Low-code programming for event-driven applications.
• janus-gateway - WebRTC gateway