https://kodnos.dev A developer blog about software engineering, web development, and technology. en https://kodnos.dev/post/how-ai-is-quietly-changing-the-way-we-write-code https://kodnos.dev/post/how-ai-is-quietly-changing-the-way-we-write-code AI coding tools are not just hype anymore. After a year of daily use, here is what actually works, what fails, and how to use them without losing the skills that matter. Fri, 17 Apr 2026 03:31:19 +0000 AI & Data Science admin https://kodnos.dev/post/recursion-explained-like-you-are-five https://kodnos.dev/post/recursion-explained-like-you-are-five Recursion confuses everyone at first. Here is a thorough guide with real examples, step-by-step traces, common pitfalls, and the mental shift you need to write recursive functions confidently. Tue, 14 Apr 2026 03:31:19 +0000 Software Engineering admin https://kodnos.dev/post/docker-in-plain-language-what-it-does-why-care https://kodnos.dev/post/docker-in-plain-language-what-it-does-why-care Docker confused me for way too long. Here is the complete, no-jargon guide covering Dockerfiles, images, containers, Compose, common mistakes, and when Docker is actually worth using. Sat, 11 Apr 2026 03:31:23 +0000 DevOps admin https://kodnos.dev/post/hash-tables-data-structure-behind-almost-everything https://kodnos.dev/post/hash-tables-data-structure-behind-almost-everything Hash tables power most of the software you use daily. A deep dive into how they actually work — hash functions, collisions, load factors, real-world patterns, and the interview trick that solves half of all problems. Tue, 07 Apr 2026 03:31:23 +0000 Software Engineering admin https://kodnos.dev/post/rest-api-design-mistakes-and-how-to-fix-them https://kodnos.dev/post/rest-api-design-mistakes-and-how-to-fix-them The same API design mistakes keep showing up in code reviews. Here are the 10 most common ones I see, with clear examples, proper HTTP status codes, and a pre-launch checklist you can use today. Sat, 04 Apr 2026 03:31:27 +0000 Software Engineering admin https://kodnos.dev/post/what-are-llms-why-developers-should-understand-them https://kodnos.dev/post/what-are-llms-why-developers-should-understand-them LLMs are not magic and not just hype. A developer-focused deep dive into how they actually work — training, tokens, context windows, RAG, prompt engineering, and what you need to know to build real applications. Wed, 01 Apr 2026 03:31:27 +0000 AI & Data Science admin https://kodnos.dev/post/git-workflow-that-makes-sense-for-small-teams https://kodnos.dev/post/git-workflow-that-makes-sense-for-small-teams Git Flow is overkill for small teams. Here is the complete workflow I use — branching strategy, commit conventions, PR best practices, conflict resolution, and CI setup that keeps things simple and safe. Sat, 28 Mar 2026 03:31:32 +0000 Software Engineering admin https://kodnos.dev/post/postgresql-performance-tips-real-projects https://kodnos.dev/post/postgresql-performance-tips-real-projects Years of PostgreSQL experience distilled into the tips that actually matter in production. EXPLAIN ANALYZE, indexing strategies, N+1 fixes, connection pooling, full-text search, and the 80/20 rule of database performance. Wed, 25 Mar 2026 03:31:32 +0000 Software Engineering admin https://kodnos.dev/post/space-complexity-how-much-memory https://kodnos.dev/post/space-complexity-how-much-memory What is space complexity and why does it matter? Understanding the time-space tradeoff, when to spend memory to save time, and how to analyze your algorithm's memory usage. Fri, 06 Mar 2026 21:40:31 +0000 Software Engineering admin https://kodnos.dev/post/big-o-cheat-sheet-every-complexity https://kodnos.dev/post/big-o-cheat-sheet-every-complexity The Big O cheat sheet: every complexity ranked from best to worst, practical input size guidelines, common operations table, and when to use what. Everything in one place. Fri, 06 Mar 2026 21:40:31 +0000 Software Engineering admin https://kodnos.dev/post/understanding-time-complexity-big-o https://kodnos.dev/post/understanding-time-complexity-big-o What is Big O notation and why does it matter? A practical guide with interactive charts, code examples in Python and Java, and the simple mental model that covers 90% of cases. Fri, 06 Mar 2026 21:40:31 +0000 Software Engineering admin https://kodnos.dev/post/welcome-to-kodnos https://kodnos.dev/post/welcome-to-kodnos A personal tech blog about software engineering, machine learning, and modern web development - built from scratch as an open-source project. Sat, 28 Feb 2026 22:02:26 +0000 Technology admin