WebSocket history – from concept to modern real‑time applications
Discover the origins of the WebSocket protocol, its inner workings, and the most interesting uses in real‑time applications.
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Blog Notes from
Notes from
real builds
I write about the things I have run into on actual projects: performance, architecture, security and AI. If it is here, it is because I had to solve it for myself first.
Latest articles
Next.js Edge Runtime performance – internal mechanisms and memory optimization
In-depth analysis of Edge Runtime in Next.js, memory optimization techniques and common production pitfalls.
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Technical SEO for SaaS Applications with GraphQL – A Practical Guide
Learn how to optimize technical SEO in a GraphQL-based SaaS, estimate costs, and measure ROI.
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Hybrid Architecture LLM RAG Agent – A Practical Guide for Products
How to combine LLM models, Retrieval‑Augmented Generation, and agents to achieve efficient, cost‑optimal product solutions.
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Broken Access Control in Node.js and Next.js – Practical Guide to RBAC and NextAuth
Step by step we will show how to build a solid access control system in Node.js/Next.js, combining NextAuth with RBAC to eliminate the risk of Broken Access Control.
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Prisma batch queries performance – practical performance analysis
We compare batching queries in Prisma with single queries in PostgreSQL – benchmarks, trade-offs and tips on when to use batching.
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Technical SEO SaaS Pricing 2024 – Practical Cost Calculator
A ready-made calculation model that allows you to precisely estimate the cost of technical SEO for a SaaS platform in 2024.
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Node.js V8 Inspector – Performance Profiling in Production
A practical guide to V8 Inspector – how to profile CPU and memory in Node.js and avoid pitfalls in a production environment.
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gRPC in Node.js – a performant alternative to REST in modern applications
Discover how gRPC works, its advantages and practical implementation tips in Node.js and TypeScript.
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Technical SEO Next.js Core Web Vitals 2024 – Practical Guide
Step by step we will show how to improve LCP and FID in Next.js applications, considering costs and tools in 2024.
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LLM Cost Optimization Using Cache – A Practical Guide
Learn how to combine LLM result caching and hybrid queries to lower costs and improve latency in production applications.
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SQL Injection in Prisma – A Practical Guide for Node.js Engineers
Learn how to secure Prisma against SQL injection in Node.js applications using TypeScript and OWASP best practices.
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Next.js Server Components performance – in‑depth analysis and practical guidelines
Check how Server Components in Next.js affect bundle size and load time and when to use them.
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