Zero-JS was not enough: edge-caching SSR HTML on Cloudflare Workers
How the author stabilized Core Web Vitals after dropping React: Cache API, cookie-gated HTML, removing Zod from the browser, and refactoring Astro forms.
Yevhen Stuzhuk - Personal Portfolio
I am a Senior Software Engineer
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Performance
All blog posts with this tag.
Why EAV Looks Like a Good Idea — Then Destroys ERP Performance
Entity–Attribute–Value looks perfect at the start: flexibility without migrations. Why JOINs, indexes, and reports break ERP years later — and where EAV fits, and where it does not.
Evolution of Image Formats: From BMP to AVIF — A Developer's Complete Guide
History and practice: BMP, GIF, JPEG, PNG, WebP, HEIC, AVIF, and JPEG XL. How compression works, what to pick in 2026, and how to serve images without hurting LCP.
Database Optimization: Six Strategies That Cut Query Time by 60%
Profiling, indexes, ORM refactors, materialized views, connection pooling, and cache — a practical PostgreSQL and MySQL guide.
JavaScript performance: 8 fixes that actually matter in 2026
Measure first, then optimize: debounce, lazy load, Web Workers, bundle diet, and a quick-wins checklist.
Near-instant Next.js: a practical App Router checklist
Server Components by default, less client JS, next/image, no CLS, caching, next/script, and measuring on throttled mobile—not your laptop.
SPECTRA: synthetic IR collections to stress-test search before human labels
arXiv preprint: reproducible corpus generator up to 60k docs — near-linear speed, controlled distractors, BM25 nDCG@10 drops from 1.00 to 0.43 as noise grows.
Fast Client-Side Puzzle Solvers with Next.js and Web Workers
Next.js static export, Web Workers for heavy algorithms, bitboards for Block Blast, trie for word search — $0 hosting.
Shrinking a 3 GB SQLite dictionary to ~10 MB with an FST
The tsk case: finite state transducers in Rust, shared Finnish suffixes, and why SQLite FTS was only a stepping stone.