Open-source alternatives to Book

This project is a clean architecture reference implementation and modular project template for Android development. It provides a structural blueprint designed to isolate business logic from external frameworks and user interfaces. The template emphasizes a modular approach to organize code into independent modules, which is intended to improve build times and long-term project scalability. It demonstrates the application of domain-driven design to keep core business rules and entities independent from the underlying platform. The implementation covers several key architectural patterns, inc

This project is a full-stack forum platform built with TypeScript that serves as a reference architecture for implementing domain-driven design and clean architecture patterns. It provides a structured environment for community discussion, enabling users to register, authenticate, and engage in moderated conversations across organized topic categories. The platform distinguishes itself by strictly separating core business logic from infrastructure concerns. By utilizing a layered hexagonal architecture and the repository pattern, the codebase isolates business rules from external frameworks a

This project is a collection of software engineering principles and architectural design patterns designed to minimize the mental effort required to understand and maintain source code. It serves as a guide for implementing clean code methodologies and architectural simplification to reduce the overall cognitive load on developers. The framework emphasizes aligning module boundaries and ubiquitous language with business stakeholders to prevent architectural ripple effects. It advocates for balancing service granularity to avoid the overhead of distributed monoliths and suggests favoring objec

This project is a reference implementation for structuring Java applications using clean architecture and domain-driven design principles. It provides a template for organizing code into concentric layers, ensuring that core business rules and domain entities remain entirely independent of external frameworks, databases, and delivery mechanisms. The architecture relies on the dependency inversion principle to decouple business logic from infrastructure. By defining abstract interfaces for data access and external services, the system allows for the replacement of underlying technologies witho

This project provides a structural pattern for organizing React and TypeScript applications by decoupling business logic from user interface components and external infrastructure. It implements a layered architecture that isolates core domain rules, ensuring that the application remains independent of specific frameworks, libraries, or external service implementations. The architecture relies on dependency injection and inversion principles to manage service implementations, allowing for modularity and easier testing. By utilizing a functional core and imperative shell, the system separates

This project is a reference implementation of domain-driven design patterns and a sample of command query responsibility segregation. It provides a collection of event-driven microservices that demonstrate the practical application of architectural principles for structuring complex software systems. The implementation separates read and write models through an event journal and organizes services into bounded contexts to maintain clear functional boundaries. It coordinates business logic by dispatching and consuming domain events to synchronize different modules. The project covers a range

This project is a .NET Clean Architecture template designed to separate domain logic from infrastructure and web frameworks. It provides a project structure for C# applications and a React Redux frontend, creating a testable backend focused on maintainability. The implementation centers on Domain Driven Design, modeling core business domains using entities and value objects to manage complex requirements. It utilizes a decoupled architecture to ensure that business logic remains independent of external frameworks and database technologies. The project covers full stack application bootstrapp

This project serves as a comprehensive handbook and architectural guide for software engineering best practices. It provides a curated set of principles and technical guidelines focused on maintaining long-term code health, reducing complexity, and ensuring that software systems remain readable and manageable as they grow. The core philosophy centers on modularity and domain-driven design, encouraging developers to structure applications around specific business use cases rather than the constraints of external frameworks. By prioritizing interface-based contracts and dependency injection, th

This project is a TypeScript-based architectural framework designed to implement domain-driven design and hexagonal architecture in enterprise applications. It provides a structured boilerplate that isolates core business logic from infrastructure concerns, ensuring that domain entities, use cases, and external technology adapters remain decoupled and maintainable. The framework distinguishes itself by enforcing strict architectural boundaries and dependency inversion, preventing unauthorized access to core logic from external layers. It utilizes a command-query responsibility segregation pat

This project is a Java microservices reference implementation that demonstrates the application of structural design patterns for distributed systems. It consists of a suite of containerized services and infrastructure dependencies designed to showcase how to coordinate multiple independent services into a functional system. The implementation focuses on several advanced architectural patterns, including a centralized API gateway for routing and aggregating responses, Command Query Responsibility Segregation to separate read and write operations, and event sourcing to persist the state of bus

This project serves as a reference implementation for applying clean architecture principles within a C# environment. It demonstrates how to structure enterprise applications by organizing code into concentric, independent layers that isolate core business logic from external infrastructure, frameworks, and database concerns. The codebase illustrates the application of domain-driven design to center software logic around business entities and rules. It utilizes interface-based decoupling and dependency inversion to ensure that high-level policies remain unaware of low-level implementation det

Blog.Core is a production-ready backend boilerplate for building enterprise APIs and microservices using ASP.NET Core. It provides a foundational infrastructure for distributed systems, including tools for database-first scaffolding and the implementation of multi-tenant API frameworks. The project distinguishes itself through automated data layer generation, which produces entity models and repository layers directly from database schemas. It implements a centralized identity management system using standard identity server protocols to handle authentication and authorization across multiple

Effector is a reactive state management library designed for building complex, event-driven applications. It functions as a data flow engine that models application logic as a directed acyclic graph, ensuring that state updates propagate automatically through interconnected nodes. By utilizing atomic state updates and declarative unit composition, the library maintains data consistency and provides a predictable execution model for managing application state. The project distinguishes itself through its framework-agnostic architecture, which decouples business logic from user interface implem

This project is a reference implementation and template for a modular iOS application using SwiftUI and Clean Architecture. It provides a structure organized into independent layers to decouple the user interface and external frameworks from core business logic. The architecture incorporates Domain-Driven Design to manage complexity by organizing code into independent modules based on business domains. This approach enforces strict dependency boundaries and improves build times. The project implements a plugin-based data layer that hides API and database implementations behind gateways to al

Rails Event Store is a library for implementing event sourcing and command query responsibility segregation patterns within Ruby applications. It functions as a framework for capturing all application state changes as an immutable sequence of events, providing a permanent and verifiable history of system operations. The library provides a messaging infrastructure that decouples business logic by broadcasting domain events through a central bus. This architecture allows for the execution of handlers either immediately or asynchronously, ensuring that heavy processing tasks do not block the pri

This project is an ASP.NET Core solution template and boilerplate that implements a clean architecture pattern for building enterprise applications and web API backends. It provides a standardized project scaffold designed to separate business logic from infrastructure and user interfaces to ensure high testability and low coupling. The project features a database agnostic structure that allows for switching persistence providers without altering core business logic. It includes a command line tool for enterprise application bootstrapping, enabling the automated generation of project structur

This project is a Swift iOS architecture template that implements the Clean Architecture pattern. It organizes software into distinct layers to decouple business rules from external frameworks, user interfaces, and infrastructure to improve testability and maintenance. The template incorporates Domain Driven Design to isolate core business logic and utilizes a modular application structure to divide features into independent modules. It employs the Coordinator pattern to remove routing logic from view controllers and a dependency injection framework to ensure components remain independent and

This project is a microservice framework for building scalable backend systems in Go. It provides an architecture for distributed systems with integrated support for service discovery, load balancing, and fault-tolerance mechanisms. The framework distinguishes itself through a domain-driven layered architecture and a remote-first configuration system that synchronizes settings between remote stores and local files with automatic failover. It implements a high-performance communication model using gRPC for unary and streaming data exchange, as well as real-time notification systems for managin

This project provides a structured template for building enterprise applications using a modular monolith architecture. It demonstrates how to organize complex business logic into independent, domain-specific modules that remain contained within a single deployment unit. The architecture enforces strict boundaries between components to minimize coupling and complexity. It utilizes domain-driven design principles to map software components directly to real-world business concepts, ensuring that logic remains independent of infrastructure concerns. Communication between these isolated modules i

This project is a comprehensive guide to architectural standards and coding patterns for developing maintainable applications within the Laravel framework. It focuses on clean code standards, applying the single responsibility and DRY principles to ensure codebase predictability and consistency. The guide emphasizes decoupling components by moving business logic into service layers and shifting input validation into dedicated request classes to keep controllers lean. It advocates for the use of a service container and dependency injection to reduce class coupling and improve testability. The

Commanded is an Elixir framework designed for building event-sourced applications that utilize domain-driven design. It provides a structured environment for implementing command-query responsibility segregation, allowing developers to separate write-side command processing from read-side data projection. By treating state changes as an immutable sequence of events, the framework ensures a reliable audit trail and facilitates system recovery. The project distinguishes itself through its support for distributed process orchestration and event-driven middleware pipelines. It enables the managem

This is a Go backend template that structures a web service into domain, usecase, controller, and repository layers with strict dependency inversion. It provides a foundation for building maintainable and testable REST APIs by separating business logic from transport and data access concerns. The project implements JWT-based authentication, issuing access and refresh tokens for user signup, login, and protected endpoint access. It uses the Gin HTTP framework to build a Docker-packaged REST API with public and private route groups, request validation, and middleware-based authentication. Depen

This project is a framework for implementing event sourcing and command query responsibility segregation within containerized microservices. It provides a structured approach to managing business state as a sequence of immutable events, ensuring a reliable audit trail and the ability to reconstruct system state at any point in time. The framework distinguishes itself by enforcing a clear separation between data modification and data retrieval paths. By utilizing event-driven data synchronization, it allows for the asynchronous updating of materialized views and read models, ensuring that quer

This is a reference implementation of Uncle Bob's clean architecture for Android, structured into distinct domain, data, and presentation layers. The project demonstrates how to organize an Android application around business use cases, keeping domain logic and entities free from framework dependencies. The architecture enforces dependency inversion through layered separation, where inner domain layers define interfaces that outer layers implement. This approach enables repository abstractions for data source switching, presenter-view separation for testable UI logic, and use-case composition

Prompt patterns is a framework for organizing AI-driven system design through structured prompt engineering and domain-driven development methodologies. It provides a library of standardized interaction strategies designed to improve the consistency, accuracy, and logical reasoning of large language model outputs. By applying these patterns, users can translate complex business scenarios into structured domain models and technical specifications. The project distinguishes itself by integrating domain-driven design principles directly into the prompting workflow. It utilizes techniques such as

This project is a Domain-Driven Design framework and strategic design methodology. It provides a structured workflow for translating business knowledge into technical implementations, guiding the decomposition of complex business domains into manageable software models. The methodology focuses on strategic domain decomposition, identifying core domains to inform build-versus-buy decisions, and defining bounded contexts to establish system responsibilities. It employs collaborative visual techniques to build a shared mental model of the problem domain between technical and non-technical team m

This project provides a structured boilerplate for building Go web applications based on clean architecture principles. It serves as a template for organizing codebases to ensure that core business logic remains isolated from external frameworks, database layers, and delivery mechanisms. The implementation prioritizes domain-driven design by centering the application around pure business entities that contain no references to infrastructure concerns. It utilizes layered dependency inversion and interface-based port adaptation to decouple the internal logic from external dependencies, allowing