Open-source alternatives to LearningNotes

This project is a curated collection of Android development code snippets, implementation patterns, and technical guides designed to assist in building and maintaining mobile applications. It serves as a reference for standard mobile architecture, providing structured approaches to common development requirements and system integration tasks. The repository distinguishes itself by offering specific technical strategies for managing application lifecycles, optimizing memory usage, and ensuring interface responsiveness in resource-constrained environments. It provides programmatic techniques fo

This project is a curated knowledge repository designed to support the professional development of software engineers. It functions as a comprehensive index of industry best practices, methodologies, and design principles, providing a structured roadmap for those seeking to improve their technical skills, architectural decision-making, and career trajectory. The repository distinguishes itself through a community-driven approach, relying on peer-reviewed contributions to maintain an up-to-date collection of resources. It organizes vast amounts of technical information into a hierarchical taxo

This project serves as a technical reference and guide for implementing idiomatic software design patterns within the Go programming language. It provides a curated collection of architectural blueprints and coding strategies designed to help developers organize complex codebases into maintainable, modular components. The repository covers a broad spectrum of software engineering practices, including creational, structural, and behavioral design patterns. It emphasizes the use of language-specific idioms to manage object instantiation, decouple component interactions, and extend functionality

This repository serves as a comprehensive educational collection of industry-standard software design patterns and architectural principles implemented in Java. It functions as a structured reference for developers to study and apply proven strategies for building maintainable, object-oriented systems. The project acts as a knowledge base for software engineering, offering a curated set of programming heuristics and best practices. By providing ready-to-use implementations of standard design patterns, it enables developers to address common programming challenges and improve code modularity t

brpc is a high-performance C++ RPC framework and network programming library designed for building distributed systems. It functions as a multi-protocol RPC server capable of hosting and detecting multiple communication protocols, including gRPC, Thrift, HTTP, Redis, and Memcached, on a single TCP port. The project distinguishes itself through high-throughput data transport and memory efficiency, utilizing RDMA-based transport to bypass the kernel TCP stack and zero-copy memory management to eliminate data duplication. It also implements the Raft algorithm for consensus-based state replicatio

This project is a reference Kotlin Android application template and a set of sample implementations demonstrating Clean Architecture principles. It provides a structural design that isolates core business rules from the user interface and data sources into distinct, layered modules. The implementation focuses on the Model-View-ViewModel (MVVM) pattern to decouple UI logic from data models. It utilizes a dependency injection framework to automate object creation and manage component lifecycles, while employing a repository pattern to abstract data requests across memory, disk, and cloud source

Clean-Code-Notes is a clean code study guide and a collection of detailed notes based on professional software development standards. It serves as documentation for coding standards and a reference for writing maintainable source code. The project provides technical summaries for object oriented design and software design patterns. It includes guidelines for organizing classes and interfaces to reduce coupling, isolating implementation details, and implementing architectural patterns such as dependency injection and interface abstraction. The resource also functions as an implementation guid

go-plugin is a framework for implementing plugin architectures where extensions run as separate processes and communicate via a Go RPC plugin system. It functions as an inter-process communication library and lifecycle manager that allows host applications to discover, launch, and monitor external binary plugins. The framework enables cross-language plugin systems, allowing plugins written in different languages to integrate with a host through standardized RPC protocols. It features a bidirectional RPC bridge that allows both the host and the plugin to exchange interface implementations for

InterviewGuide is a comprehensive technical interview preparation platform that covers the full spectrum of software engineering recruitment, from foundational computer science concepts through to offer negotiation. It provides structured learning paths across algorithms, operating systems, databases, networking, and programming languages, with a particular emphasis on C++ and Go. The platform aggregates real interview experiences and company-specific questions from major tech employers, offering candidates a searchable database of past written exam problems and detailed accounts of actual int

Highly scalable realtime pub/sub and RPC framework

This project is a library and software architecture guide focused on the implementation of classic design patterns in JavaScript. It provides a collection of concrete coding examples that translate theoretical architectural patterns into working code to improve software maintainability and scalability. The repository focuses on structural and behavioral patterns used to solve common software engineering problems. It offers a set of templates and standards for organizing complex logic and managing frontend code organization. The content covers broad capability areas including professional Jav

deepstream.io is an open-source realtime server that synchronizes JSON records, events, and remote procedure calls across clients and backend services. It functions as a realtime data sync server, event pub/sub server, record database server, and RPC server, all within a single platform. The server authenticates and authorizes every message using multiple strategies including JWT, HTTP, and file-based credentials, with a declarative permission language controlling access to records, events, and RPCs at a granular level. The platform distinguishes itself through its combination of realtime dat

Mosby is a presentation layer framework for Android applications designed to manage application state and user intents. It functions as an architectural tool that implements both Model-View-Intent (MVI) and Model-View-Presenter (MVP) patterns. The framework utilizes a unidirectional data flow to maintain a single source of truth, ensuring that state updates remain predictable by processing intents through a single logic path. It separates business logic from the view layer to decouple presentation logic from Android Activity and Fragment classes. The system provides capabilities for state ma

This project is a Chromium-based mobile browser and rendering engine designed for mobile platforms. It functions as a web extension host, allowing the execution of browser extensions within a mobile environment to provide custom functionality. The project distinguishes itself through custom user interface modifications, such as the implementation of a specialized night mode and the relocation of the address bar for improved ergonomics. It also includes a remote debugging interface and protocol that allow an external developer console to connect to a live browser instance for inspecting and tr

Ribbon is a client-side load balancer and RPC communication library designed for inter-process communication. It functions as a fault-tolerant network proxy that distributes outgoing network requests across a pool of available server instances to prevent node overload. The project integrates as a service discovery client, maintaining synchronized lists of available server instances by connecting with cloud environment discovery tools. This allows it to manage request retries and failover behavior when remote servers become unresponsive. The library supports a protocol-agnostic transport laye

This project is a curated library of technical ebooks and guides focused on Java language learning, backend architecture, and Java Virtual Machine internals. It serves as a reference-driven knowledge base and a technical repository for software engineering principles. The collection provides specialized materials for studying Java backend architecture, including high-performance server-side development and concurrency. It includes a dedicated JVM technical reference for performance tuning and internal machine behavior, as well as resources for algorithm study and data structures. Additional

This project is a comprehensive collection of software design patterns implemented in Python. It serves as a reference for architectural, behavioral, creational, and structural patterns to guide the organization of Python applications. The collection covers behavioral strategies for managing object communication and state, creational techniques for controlling object instantiation, and structural methods for composing classes and objects into flexible hierarchies. It also includes architectural references for system-wide structuring, such as multi-tier architectures and blackboard models. Th

The Cloudflare Workers Rust SDK is a toolchain and framework for building high-performance serverless functions using Rust. It compiles code into WebAssembly modules that execute within a sandboxed host environment at the edge. The project provides a typed remote procedure call system for invoking functions across different worker instances and utilizes procedural macros for mapping these distributed interfaces. It uses trait-based bindings and standardized wrappers to provide type-safe access to platform services and web-standard request and response objects. The SDK covers a broad range of

This project is a curated repository of technical interview questions and a directory of study resources designed for professional software engineering assessments. It serves as a reference guide for interview patterns and common domain questions across various programming languages and technology stacks. The collection organizes coding and computer science questions by language and framework to assist with technical interview preparation and coding assessment study. It covers a wide range of programming domains and system design patterns to support software engineering career growth.

This project is an open-source knowledge repository that serves as a comprehensive technical interview question bank for backend engineering roles. It provides a structured resource for hiring managers and candidates to evaluate proficiency in software design, architectural patterns, and core engineering principles through a curated collection of discussion topics and coding challenges. The repository functions as a programming paradigm evaluation tool, enabling the assessment of a candidate's understanding of object-oriented, functional, and procedural techniques. It distinguishes itself by

This project is a curated knowledge repository that serves as a comprehensive index for software architecture and design patterns. It functions as a community-driven learning resource, providing developers with structured access to high-quality documentation, books, and articles focused on mastering complex design principles and industry-standard best practices. The directory distinguishes itself through a hierarchical taxonomy that organizes technical concepts into logical domains, ranging from cloud architecture and distributed systems to front-end development and machine learning. By relyi

This project provides a comprehensive collection of best practices, architectural patterns, and coding standards for the .NET ecosystem. It serves as a guide for developers to improve the readability, maintainability, and testability of C# applications by applying established software engineering principles. The repository focuses on enforcing consistent code style and structure through automated configuration rules. It emphasizes the use of SOLID design principles to create modular, loosely coupled components, alongside structured exception management to ensure diagnostic information is pres

This project is a comprehensive educational resource designed to help developers master object-oriented design and architectural patterns. It serves as a structured reference for understanding how to organize classes and objects to improve code maintainability, resolve recurring development challenges, and prepare for technical engineering assessments. The guide covers the three primary categories of design patterns: creational, structural, and behavioral. Each pattern is explained through practical examples that demonstrate how to manage object instantiation, simplify complex interfaces, and

Anko is an Android Kotlin library designed to simplify application development through a set of domain-specific languages and extensions. It functions as a programmatic UI DSL, an SQLite wrapper, an SDK utility, and an asynchronous framework. The project provides a declarative layout system that allows developers to build user interfaces through code instead of static XML markup. It distinguishes itself by offering a fluent database layer that eliminates manual cursor management and a concurrency system that uses weak references to prevent memory leaks in activities. The library covers broad

This project is a comprehensive reference library and preparation guide for Python technical interviews. It combines theoretical guides on computer science fundamentals and language runtime internals with practical implementation examples of algorithms and data structures. The repository serves as a curated knowledge base that maps theoretical interview questions to concrete code snippets. It provides technical analysis of Python language internals, including memory management, garbage collection, and the global interpreter lock, alongside a library of creational and structural software desig

This project is a comprehensive technical guide to advanced Go programming. It serves as a programming guide, technical reference, and textbook covering low-level optimization and distributed systems architecture. The resource provides detailed instructions on writing assembly instructions to optimize performance-critical code and managing C-Go interoperability to bridge C libraries with Go. It also functions as a manual for implementing remote procedure call mechanisms and creating custom plugins for the Protocol Buffers compiler. The material covers high-level capabilities including the de

Poml is a prompt management framework and templating engine designed for authoring, versioning, and rendering structured prompts for large language models. It uses a semantic markup language to organize prompts into reusable templates, combining them with dynamic context and data to generate formatted inputs. The system distinguishes itself by decoupling core prompt logic from final presentation through a stylesheet-based approach. It provides a dedicated JSON schema output generator to enforce strict, machine-parsable model responses and a configuration interface for managing function tool s