Blog

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

Koszt audytu technicznego SEO – praktyczny przewodnik dla e‑commerce

Technical SEO Audit Cost – A Practical Guide for E‑Commerce

Learn how to price and conduct a comprehensive technical SEO audit for an online store and which actions deliver the greatest benefits.

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LLM on‑device vs cloud – koszt i latencja w aplikacjach mobilnych

LLM on‑device vs cloud – cost and latency in mobile applications

We compare the costs and delays of LLMs run locally and in the cloud, to help product teams choose the optimal architecture.

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Event Loop w Node.js – wydajność, pułapki i ich eliminacja

Event Loop in Node.js – Performance, Pitfalls and Their Elimination

In-depth analysis of the event loop mechanism in Node.js, common performance problems, and practical methods for solving them.

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Prisma nested transactions optimisation – jak wydajnie zarządzać transakcjami w Node.js

Prisma nested transactions optimisation – how to efficiently manage transactions in Node.js

A practical guide to the $transaction mechanism in Prisma and methods for optimizing nested transactions.

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CSRF w Next.js – jak skutecznie chronić aplikację przy użyciu SameSite i double‑submit token

CSRF in Next.js – how to effectively protect an application using SameSite and double‑submit token

A practical guide to protecting Next.js applications from CSRF attacks – SameSite cookies and the double‑submit token method in one solution.

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Optymalizacja kosztów Docker Kubernetes

Optimizing Docker Kubernetes Costs

Learn how to optimize the costs of maintaining web applications using Docker and Kubernetes.

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Optymalizacja Expo

Expo Optimization

Learn how to optimize the performance of mobile applications created with Expo.

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Optymalizacja wydajności PostgreSQL z GiST

Optimizing PostgreSQL Performance with GiST

Learn how to use GiST indexes to improve the performance of your PostgreSQL database. Increase the efficiency of your application.

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LLM w SEO: Jak sztuczna inteligencja poprawia pozycjonowanie

LLM in SEO: How Artificial Intelligence Improves Positioning

Learn how LLM can improve the positioning of your website. Artificial intelligence in SEO is the future.

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Optymalizacja kosztów LLM

LLM Cost Optimization

Learn how the Quantization technique can help optimize LLM costs and performance.

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Bezpieczeństwo danych w Kubernetes

Data Security in Kubernetes

Learn how to secure your data in Kubernetes. Utilize features like Secrets and ConfigMap to ensure the security of your applications.

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Optymalizacja wydajności Node.js

Optimizing Node.js Performance

Learn how to optimize the performance of your Node.js application using memory dump classification.

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