CQRS and Event Sourcing: The Real Trade-offs
When CQRS pays off, when Event Sourcing makes it worse, and when plain CRUD is the right call. With TypeScript examples and the anti-patterns to avoid.
ArchitectureCQRSEvent Sourcing
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Ideas worth sharing.
Lessons from building.
Notes on software, architecture, and the details that make systems work. Written from experience, shared for the next build.
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Backpressure and Flow Control in Async Systems
When a producer outpaces its consumer — Node streams, Go channels, Rust async, RxJS, and Kafka consumer lag. The patterns that actually keep memory in check.
PerformanceBackendNode.js
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The Strangler Fig Pattern: Migrating a Legacy Monolith Without the Big-Bang Rewrite
A realistic playbook for replacing a legacy system in place — routing, dual-write, shared data, team slicing, and the order of operations that actually ships.
ArchitectureLegacyMigration
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PostgreSQL Internals: MVCC, VACUUM, and HOT Updates
How Postgres actually stores rows — tuples, xmin/xmax, HOT updates, table bloat, and why VACUUM is the most misunderstood command in your database.
PostgreSQLDatabasePerformance
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Code Review and Commit Hygiene That Actually Helps
Conventional Commits, small PRs, review culture, and the PR templates people actually fill out — how to review code so the next developer (including future-you) can still move fast.
EngineeringGitCode Review
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Designing RESTful API Endpoints: Best Practices for HTTP Methods and URL Structure
A comprehensive guide to RESTful API endpoint design — covering HTTP methods (GET, POST, PUT, PATCH, DELETE), URL structure, status codes, pagination patterns, error handling with RFC 7807, and real-world implementations in TypeScript, Java, Python, and C#.
APIBackendArchitecture
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Database Diagrams: A Practical Guide to Schema Design and Documentation
A comprehensive guide to database diagrams — covering ERD notations (Chen, Crow's Foot, UML), drawing with Mermaid and PlantUML, real-world schema examples, and best practices for documenting database designs.
DatabaseArchitecturePostgreSQL
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JWT for Service-to-Service Authentication : Server-to-Server Authentication in Microservices
A comprehensive implementation guide to JWT for service-to-service authentication — covering signed JWTs between services, asymmetric keys (RS256/ES256) for distributed verification, token propagation patterns, and Node.js implementation.
AuthenticationSecurityMicroservices
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Service Mesh Identity (SPIFFE/SPIRE) : Server-to-Server Authentication in Microservices
A comprehensive guide to SPIFFE/SPIRE for workload identity in microservices — covering SPIFFE ID format, SVIDs, SPIRE architecture and components, Istio/Envoy integration, and zero-trust networking patterns.
AuthenticationSecurityMicroservices
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OAuth 2.0 Client Credentials Grant : Server-to-Server Authentication in Microservices
A comprehensive implementation guide to OAuth 2.0 Client Credentials Grant for machine-to-machine authentication — covering the client credentials flow, token caching and refresh, scope and audience validation, and Node.js implementation with multiple identity providers.
AuthenticationSecurityMicroservices
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