Architecture Patterns · Development

How AWS Dogwood adds temporal conditions to Cedar policies, lowers them back to plain Cedar, and enforces agent guardrails at the Amazon Bedrock AgentCore gateway.

authorization · security · ai-agents +2

Rushing feels fast but creates rework, bugs, and firefighting. Why pausing for refactoring, tests, and CI upkeep is an investment in speed, not lost speed.

technical-debt · testing · ci-cd +2

Learn the mental shift behind event-driven systems: announce facts instead of issuing commands. Covers naming, decoupling, eventual consistency, and idempotency.

event-driven · messaging · idempotency +2

Committing Bruno .bru files to the repo keeps the API contract in the same PR and history as the code. The only real tax is a deliberate secrets boundary.

testing · ci-cd · developer-experience +1

How high-performing teams shrink the lead time from code-complete to live in production, without trading away security or code quality. A guide for tech leads.

ci-cd · devops · dora-metrics +2

How a frontend platform team makes the right way the easy way: golden-path scaffolding, versioned shared packages, and a task CLI that removes per-team drift.

platform-engineering · developer-experience · build-tools +1

A presentation service is the thin backend behind a UI fragment. Ports-and-adapters keeps it from rotting into glue code by pointing dependencies inward.

architecture · nodejs · typescript +3

Server-side micro-frontend composition lets independent teams own fragments of one page. The hard part is the ownership boundary and the versioned consistency contract.

build-tools · architecture · nextjs +2

A small, complete URL shortener on AWS Lambda and DynamoDB with Effect and SST v4, showing schema-at-the-boundary, layers, and tagged-error mapping.

functional-programming · lambda · typescript +2

Bake a single PII branded type into your observability API signatures so TypeScript rejects sensitive fields at the call site, before any runtime redactor sees them.

typescript · zod · observability +3

Agents made code-writing essentially free, but judgment about when and how much to use them is still entirely yours. An Aristotelian frame to separate the two skills.

ai-tools · claude-code · ai-agents +3

HMAC-SHA-256 for webhooks, signed URLs, and internal auth, with runnable code in three languages and the boundary where digital signatures take over.

security · encryption · webhooks +4

A stack-agnostic map of WebAssembly's three bets (browser performance, server-side WASI, edge compute) so you can tell which one a Wasm talk is about.

webassembly · edge-computing · architecture

One default shape for long-running work across a browser SPA and a mobile app, with the cases where it should be overridden.

api-design · real-time · webhooks +4

A pragmatic guide for designers working with async backends: three interaction patterns, when to use each, and four anti-patterns to push back against.

event-driven · state-management · design-patterns +2

A practical introduction to idempotency for developers building APIs, payments, and message consumers, covering HTTP semantics, idempotency keys, and upserts.

idempotency · api-design · distributed-systems +4

How Zapier MCP gives AI agents action-level whitelisting, credential isolation, and human-in-the-loop approval, a managed alternative to custom scoped proxies.

mcp · security · ai-agents +4

Copying Claude Code configurations causes context window bloat, degraded tool selection, and mismatched workflows. Build setups intentionally with token budget math.

developer-experience · ai-tools · productivity +2

A vendor-neutral evaluation of AWS Verified Permissions, SpiceDB, OpenFGA, Cerbos, and OPA, with architecture patterns, cost analysis, and a decision framework.

authorization · security · architecture +4

A deep technical comparison of SpiceDB and Auth0 FGA (OpenFGA), two Zanzibar-inspired systems with different trade-offs in schema, consistency, deployment, and scale.

authorization · security · architecture +3

Authentication vs authorization, common permission pitfalls, the fail-closed principle, and the goals every permission system should meet.

typescript · nextjs · authorization +2

Refactor scattered permission checks into a centralized service layer, add Next.js middleware guards, and build a defense-in-depth authorization architecture.

typescript · nextjs · authorization +2

Build a type-safe RBAC system in TypeScript, create a unified can() function, sync permissions across UI and backend, and learn when RBAC reaches its limits.

typescript · nextjs · authorization +2

Build an ABAC policy engine in TypeScript with the builder pattern, conditional permissions, and type-safe policy evaluation that replaces RBAC's limitations.

typescript · nextjs · authorization +2

Extend ABAC with environment-based rules, field-level read and write permissions, and automatic database query filtering that eliminates duplicate permission logic.

typescript · nextjs · authorization +2

Add multi-tenant isolation to your permission system, evaluate CASL as a library alternative, and use decision frameworks to choose the right authorization architecture.

typescript · nextjs · authorization +3

Why production teams replace broad MCP access with scoped API proxies. Atlassian, Google Workspace, and Notion via FastAPI proxy, CLI wrapper, and n8n.

mcp · api-design · python +4

Comprehensive guide to preparing data for RAG systems covering document parsing, chunking strategies, contextual enrichment, and embedding optimization

rag · llm · embeddings +2

A practical comparison of TypeScript AI SDKs for building agents: Vercel AI SDK, OpenAI Agents SDK, and AWS Bedrock, with code examples and decision frameworks.

typescript · ai-tools · serverless +4

An implementation-focused glossary for developers navigating the AI/LLM landscape - from tokens to agents, RAG to fine-tuning, with code examples.

llm · ai-agents · rag +6

A technical guide to production-grade prompt engineering: systematic design, security, observability, and cost optimization for enterprise LLM apps.

prompt-engineering · llm · ai-tools +6

How SOLID principles apply to modern JavaScript: practical examples with TypeScript, React hooks, and functional patterns, plus when they're overkill.

typescript · javascript · react +4

A practical guide to learning Effect incrementally and integrating it with AWS Lambda, with real code examples, common pitfalls, and production patterns.

typescript · functional-programming · lambda +4

A practical guide to API versioning: URL vs header approaches, breaking changes, Sunset-header deprecation, AWS API Gateway, GraphQL, and contract testing.

api-design · deployment · graphql +4

A production guide to feature flags in distributed systems, comparing LaunchDarkly, Unleash, and AWS AppConfig with examples for rollouts and A/B testing.

feature-flags · devops · ci-cd +5

Build reliable, maintainable E2E suites with Playwright and Cypress: framework selection, flaky-test prevention, CI/CD integration, and optimization.

testing · ci-cd · automation +2

Learn how the Transactional Outbox Pattern solves the dual-write problem in distributed systems, with practical implementations using PostgreSQL, DynamoDB, and CDC tools.

distributed-systems · microservices · event-driven +5

A comprehensive guide to advanced RAG techniques including hybrid search, reranking, GraphRAG, and self-corrective patterns with production AWS implementation examples.

rag · llm · vector-databases +4

Securing AI agents in production with AWS Bedrock Guardrails, defense-in-depth, and patterns that prevent prompt injection, tool misuse, and multi-agent attacks.

ai-agents · aws-bedrock · security +3

A practical guide to consumer-driven contract testing with Pact in TypeScript microservices, catching breaking API changes before deployment.

testing · microservices · api-design +3

Build, secure, and deploy custom Model Context Protocol servers for internal systems in TypeScript, with authentication, monitoring, and Kubernetes deployment.

typescript · mcp · nodejs +5

The architectural evolution from rule-based chatbots to autonomous AI agents, covering ReAct, Plan-and-Execute, and multi-agent patterns in TypeScript.

ai-agents · llm · architecture +2

Implement the Saga pattern across microservices with AWS Step Functions and EventBridge, covering idempotency, compensation logic, and production patterns.

design-patterns · distributed-systems · microservices +4

Lessons from running LangChain in production: the anti-patterns that cause failures, the patterns that work, with code examples and cost optimization strategies.

langchain · llm · production +5

Learn how MCP standardizes AI tool integration, with TypeScript examples for building servers, managing security, and optimizing performance in production.

mcp · ai-adoption-strategy · claude +3

Observer, Strategy, Command, State, and Mediator in TypeScript: which ones the language already covers, and when RxJS, Redux, or XState earn their place.

typescript · design-patterns · functional-programming +1

How Singleton, Factory, Builder, and Prototype patterns evolved in TypeScript: when ES modules replace singletons and when factory functions beat classes.

typescript · design-patterns · architecture +1

Modern patterns from the JavaScript and TypeScript ecosystems - hooks, compound components, render props, and repositories that solve problems the GoF never faced.

typescript · react · design-patterns

How Decorator, Adapter, Facade, Composite, and Proxy patterns evolved in React and TypeScript: when HOCs give way to hooks and how adapters isolate third-party APIs.

typescript · react · design-patterns +2

How the Builder pattern uses TypeScript's type system for safe, discoverable APIs across serverless, data layers, and testing, with working examples.

typescript · design-patterns · aws-cdk +2

Build maintainable, type-safe Lambda middleware with Middy's builder pattern, Zod validation, feature flags, and secrets management for serverless apps.

lambda · middleware · typescript +7

A practical glossary of essential networking concepts for developers - from protocols and DNS to debugging tools and security basics.

networking · http · debugging +3

A comprehensive introduction to Domain-Driven Design: core concepts, building blocks, strategic patterns, and when and how to apply DDD in practice.

domain-driven-design · architecture · design-patterns +2

A hands-on guide to Event Storming: what it is, how to facilitate sessions effectively, and when to use this workshop technique for domain modeling.

domain-driven-design · architecture · agile +1

A practical comparison of headless CMS options (Strapi, Contentful, Kontent, Storyblok) with Cloudinary image management and framework integration.

typescript · nextjs · react-native +3

A framework for six levels of AI assistance in software, from code review to vibe coding, with guidance on when to dial AI help up or down.

ai-tools · code-quality · productivity +4

Where AI coding assistants actually help, why individual speed gains stall at the team level, and what to put in place before widening adoption.

ai-tools · productivity · github-copilot +3

Security risks, governance, and trust building for AI developer tools: the 2025 CVEs, shadow AI discovery, and an incident response playbook for leaked secrets.

security · compliance · team-dynamics +1

A foundational guide to key-value storage: what it is, where it fits, why teams choose it, and which solutions ship with which technology stacks.

redis · dynamodb · caching +4

A comprehensive guide to Claude Code, AI agents, and Model Context Protocol servers that transforms developers from basic users to power users

claude-code · mcp · ai-tools +5

A section-by-section guide to technical RFCs: what each part has to establish, what reviewers look for, and where proposals stall in review.

rfc · documentation · architecture +3

One-size-fits-all auth is a myth: banking, healthcare, e-commerce and SaaS each shape the authentication architecture differently.

authentication · authorization · security +5

Systematic profiling for PostgreSQL and MongoDB: how to find the queries driving latency and infrastructure cost, and which fixes actually move them.

data-storage-orm · postgresql · performance +4

Recognizing distributed monoliths, strategic service consolidation, and the honest reality of moving back to a modular monolith when complexity grows.

microservices · architecture · distributed-systems +2

Why time bugs hide in production, how to migrate from Moment.js to Day.js or date-fns, and how to keep UTC everywhere with conversion only at the display boundary.

nodejs · javascript · productivity +3

Move past green-light dashboards to observability that narrates system behavior, user journeys, and business impact via distributed tracing.

observability · monitoring · opentelemetry +3

Where RFC designs diverge from production reality, using notification systems as the worked example, and how to tell useful adaptation from architectural drift.

rfc · production · debugging +4

Design patterns, database schemas, and architectural decisions for building enterprise notification systems that handle millions of users

typescript · postgresql · architecture +4

Implementation strategies for real-time notification delivery across WebSocket, push notification, email, SMS, and webhook channels with production-tested patterns

real-time · notifications · messaging +2

Real-world debugging techniques, monitoring strategies, and lessons learned from notification system failures in high-stakes production environments

debugging · monitoring · production +4

Advanced analytics strategies, A/B testing frameworks, and performance optimization techniques for notification systems serving millions of users

marketing-analytics · performance · testing +3

Practical guidance on RFC structure, stakeholder review, and turning technical debates into decisions a team actually keeps.

rfc · documentation · architecture +3

Compare Auth0, Firebase Auth, Supabase Auth, AWS Cognito, and custom JWT: which to default to, how the pricing models differ, and the pitfalls to plan for.

authentication · cloud-providers · security

Auth0 multi-audience authentication across micro frontends: token management strategies and silent authentication in React Native with WebView-based apps.

authentication · oauth2 · react-native +1

When a Lambda fleet outgrows Middy's static middleware model, how a project-specific engine handles per-request config, and what owning one costs

lambda · middleware · performance +6

Discover how Middy transforms Lambda development with middleware patterns, moving from repetitive boilerplate to clean, maintainable serverless functions

lambda · middleware · serverless +5

Choose the right database across SQL, NoSQL, NewSQL, and edge options: the trade-offs of each category, selection criteria, and a decision framework.

data-storage-orm · postgresql · redis +6

Documentation debt can slow teams faster than technical debt. A guide to treating docs as critical infrastructure and scaling knowledge across engineering teams.

documentation · rfc · team-management +3

Before webpack, we concatenated files with Grunt and wrestled with jQuery spaghetti. How frontend tooling grew from manual file management to real build systems.

javascript · build-tools · technical-debt +2

How Grunt reshaped build automation and webpack changed how we think about dependencies: the hard shift from manual processes to modern bundling.

build-tools · webpack · javascript +1

How native tools like esbuild, SWC, and Vite solved webpack's speed problems, taking builds from tens of seconds down to milliseconds.

esbuild · build-tools · vite +4

What edge computing, AI-assisted development and platform integration actually changed in frontend tooling, and which promises the published figures do not support.

edge-computing · ai-tools · deployment +3

Git branching strategies mapped to team size, product type, and release cadence. GitHub Flow is the default; here is when another model earns its overhead.

ci-cd · lessons-learned · team-management +3

How Google's 2009 Closure Compiler shaped modern web tooling, from dead code elimination to type checking, and its lasting mark on today's build tools.

javascript · build-tools · best-practices +6

Every Mermaid diagram type with a copy-ready example: flowcharts, sequence and class diagrams, ER models, Gantt charts, journeys, and more

documentation · tutorial

Micro frontend composition strategies compared: server-side, build-time, Module Federation, and iframe, with the team preconditions that make the trade pay off.

react · tutorial · typescript

Why undici is the sensible default for Node.js server-to-server calls, and when Axios, native fetch, or Effect is the better pick

nodejs · http · functional-programming +3