System Design

A list of resources, books and samples for domain-driven design (DDD), CQRS and event sourcing. in Backend, API & System Design →

A list of resources for designing and documenting software architecture. in Backend, API & System Design →

The client declares which fields it wants, so over- and under-fetching are solved at the schema level. in Backend, API & System Design →

A channel teaching system design, API design and backend architecture through case studies: a hotel booking system, caching, CDNs, load balancing. in Backend, API & System Design →

An archive of architecture write-ups spanning fifteen-plus years. in Backend, API & System Design →

Martin Fowler’s canonical collection of essays and patterns on software architecture. in Backend, API & System Design →

Presents each design pattern as a diagram, a realistic scenario and code — in six languages. in Backend, API & System Design →

Breaks down real company architectures as case studies with actual numbers and the trade-offs taken. in Backend, API & System Design →

Pairs scaling concepts — caching, sharding, queues, CAP — with worked architectures. in Backend, API & System Design →

The classic article on how one server can handle ten thousand concurrent connections (select/poll, epoll, threading models, kernel support). in Backend, API & System Design →

A course on internals — index structures, transaction isolation levels, locking. in Databases →

Analyses code alongside its change history, surfacing the files that churn most, carry most complexity or depend on one person. in Testing & QA →

Moonshot AI’s code-focused open-weight model. in AI · Models & Assistants →

An agent framework with memory, tools and knowledge base built into the core. in AI · Agents & Infrastructure →

Walks a codebase via AST analysis and folds in docs, SQL schemas and PDFs to build a queryable graph. in AI · RAG, Embeddings & Vectors →

A distributed vector database separating storage from compute, built for billion-scale collections. in AI · RAG, Embeddings & Vectors →

Runs in the terminal and writes each change as its own git commit. in AI · Applied Tools →

Merges snippet search with chat. Unlike general chatbots, it searches repositories and docs and uses the hits as context. in AI · Applied Tools →

A coding agent that creates files and runs commands inside VS Code, asking approval for each action. in AI · Applied Tools →

An open code model and plugin with a Chinese interface and regional infrastructure — a working alternative where access to Western services is limited. in AI · Applied Tools →

Google’s automatically generated documentation for codebases, useful for extracting structure and entry points the first time you open a repository. in AI · Applied Tools →

An open-source coding assistant for VS Code and JetBrains, where you pick which model does completion and which does chat. in AI · Applied Tools →

A VS Code fork that indexes your codebase and makes multi-file editing the primary flow. in AI · Applied Tools →

In-editor completion and chat. Unlike its rivals it is strong on governance: in the enterprise plan, whether code is… in AI · Applied Tools →

An autonomous development agent with browser and terminal access, running in an isolated Docker container. in AI · Applied Tools →

A coding agent forked from Cline. Unlike Cline, its architect, coder and debugger modes can carry separate system… in AI · Applied Tools →

A self-hosted completion engine written in Rust that fits on one GPU. in AI · Applied Tools →

Cursor’s closest rival; its Cascade mode carries long tasks alone and runs terminal commands when needed. in AI · Applied Tools →

Draw a floor plan and get an instant 3D render. in AI · Generative Media →

An automation platform where any step can be Node.js or Python code pulling npm or PyPI packages. in DevOps & Infrastructure →

A technical note on how media transfer from glasses to phone is structured — control over BLE, bulk data over Wi-Fi. in Smart Glasses & Wearables →

An open source OWASP tool for drawing data flow diagrams and doing threat modelling with methods such as STRIDE, with web and desktop versions. in Offence, Defence & OSINT →

The certification body for business continuity and disaster recovery. in Certification & Career →

A business-driven security architecture framework and its certifications. in Certification & Career →

A compilation spanning distributed systems, character encoding, latency numbers and security. in Learning & Roadmaps →

Conference recordings weighted towards software architecture and engineering culture. in Learning & Roadmaps →

A video archive of selected talks from software conferences, most with a transcript. in Learning & Roadmaps →

Recordings from a software consultancy: pair programming sessions, code reviews, design discussions. in Learning & Roadmaps →

Steps through code drawing stack frames and heap objects. in Practice & Challenges →

A book series in which the developers of open-source projects describe their own architecture. in Free Books & Long Reads →

A reference covering design patterns, code smells and refactoring techniques with examples. in Cheat Sheets & Quick Reference →