Zero-JS Wasn't Enough: Edge Caching SSR HTML on Cloudflare Workers
The previous article ended with a confession: same build, two PageSpeed runs two hours apart, desktop Performance 99 and then 90. I blamed first-scree…
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How We Saved Big and Simplified Our Image Pipeline: Adopting bunny.net on DEV
Hey everyone, Ben here. If you’ve been following the journey of DEV and our open source project Forem , you know we’ve always been obsessed with web p…
The Silent Performance Killer in Rails: Understanding and Fixing N+1 Queries
If you've ever investigated a slow Rails endpoint, chances are you've encountered one of the most common performance problems in the Rails ecosystem: …
Tackling Performance Bottlenecks in Full-Stack Development: A Senior Engineer’s Guide
As a full-stack product engineer, one of the most persistent challenges I face is managing performance bottlenecks that arise between frontend, backen…
Why recording video in the browser is harder than it looks
Hey folks! In this article, I want to share our experience building a screen recorder inside the browser. The product is Browser Recorder , a Chrome e…
UUID vs ULID vs NanoID: Which Identifier Should You Use in 2026?
A few years ago, choosing an ID format was easy. Most of us generated a UUID, stored it in the database, and moved on. Today things are different. Mod…
Starving the Garbage Collector: A Pragmatic Guide to Zero-Allocation C#
Over the last few weeks, I’ve open-sourced a suite of high-performance, zero-dependency C# engines. This includes a native DataFrame library ( Glacier…
Edge Computing in the Browser: How I Replaced a Backend Server with Web Workers & WASM
The obsession with centralizing heavy compute on backend servers is a massive bottleneck for both cost and latency. In 2026, as more applications move…
Magento 2 EAV Performance Deep Dive: Optimizing the Entity-Attribute-Value Model
The Entity-Attribute-Value (EAV) model is both Magento's greatest strength and its most persistent performance bottleneck. It gives you unlimited flex…
Smart Query-Aware Cache Invalidation: Solving Mongoose Performance at Scale
The Mongoose Caching Problem (And How We Solved It) From 300 RPS to 700+ RPS: A 2.2x Performance Breakthrough When you're building a Node.js applicati…
WebAssembly turned my "static" site into a zero-backend app platform
For the longest time I treated "static site" and "does real work" as mutually exclusive. Static meant brochureware. Anything heavier like resizing an …
Why We Rebuilt Our Magento Checkout with React: Performance Results
Magento's default Luma checkout loads a heavy Knockout.js stack, dozens of RequireJS modules, and payment iframes that fight for the main thread. For …
HTML-First Websites Are Quietly Winning Again in 2026
TL;DR: HTML-first means shipping real, server-rendered content before any JavaScript runs, then adding scripts only where they earn their place. In 20…
Token Cost Optimization: How to Cut LLM Inference Spend Without Cutting Quality
There is a version of token cost optimization that I do not recommend: cutting token counts by reducing the quality of your system prompt, your retrie…
Streaming 25 Million Excel Cells Through 7 MB of Memory
Streaming 25 Million Excel Cells Through 7 MB of Memory TL;DR: I built an export pipeline that streams 15M+ records as formatted Excel files inside ZI…
I Cut My Next.js + Supabase App Load Time by 73% - Here Are the 5 Techniques That Actually Worked
I Cut My Next.js + Supabase App Load Time by 73% - Here Are the 5 Techniques That Actually Worked Last month, our SaaS dashboard was embarrassingly sl…
How I Built an AI-Powered Adult (Porn) Content Scanner for Windows (And the Engineering Challenges I Didn't Expect)
Building an AI-Powered Content Scanner for Windows: Performance, Multithreading and GPU Acceleration in .NET Building software always looks straightfo…
Running a High-Performance AI Gateway on Kubernetes
Bifrost, the open-source AI gateway, handles thousands of concurrent LLM requests on Kubernetes with near-zero overhead, autoscaling, and centralized …
Building Zyke: A High-Performance Community Platform with HTMX, Redis, and CKEditor
When I set out to build Zyke: zyke.social , my goal was simple. I wanted a community platform that was incredibly fast, deeply optimized for search en…
Building a Sovereign Home Server: Lessons Learned Running Nextcloud, Euro-Office, and Frigate on a Raspberry Pi 5
A single-board computer like the Raspberry Pi 5 (8GB) can be surprisingly capable when properly optimized. Running a complete NVR with AI object detec…
MTP Isn't Always a Win: 1.95x on My 3090, but Speculative Decoding Is Hardware-Dependent
In my MTP post , speculative decoding roughly doubled Qwen3.6-27B generation on a 3090. It's tempting to read that as "turn on MTP, go faster." So I m…
Defeating the OFFSET Penalty: Cursor Pagination in Laravel
The Hidden O(N) Pagination Trap When building data-heavy B2B SaaS platforms at Smart Tech Devs, rendering lists of invoices, logs, or user rosters is …
How Databases Impact System Scalability and Speed in Software Engineering
Databases are core to most software systems, and their design directly influences both scalability and performance. Here’s what every engineer should …
Rails Performance Optimization: Fixing N+1 Queries with includes, preload, and eager_load
Originally published on Hashnode: https://railswithyashika.hashnode.dev/rails-performance-n-plus-one-queries When working with associations in Rails, …
Debugging and Eliminating Invisible Memory Leaks in Node.js Event Loops
When building microservices or background worker processes that are meant to run continuously for months at a time, memory management becomes critical…
I built a native C# Grep engine that's holding it's own with ripgrep (with zero allocations)
Let’s be honest: the golden rule of modern software engineering is "never rewrite grep." Tools like ripgrep are written in native Rust, compiled strai…
Doubling Qwen3.6-27B on One RTX 3090: ollama llama.cpp + MTP, Lever by Lever (35.7 80.2 tok/s)
A reader on my last post said Ollama was leaving a lot on the table — that a tuned backend with multi-token prediction (MTP) could roughly double my 3…
Breaking the 100k Row Limit: Building High-Performance Dynamic Grids with VyncCanvasScroll in Vue 3
The Million-Row Challenge in Modern Web Apps When dealing with massive enterprise datasets—like Amazon SKU multi-account performance metrics or high-f…
RUM—Storing More in the Index
This series of posts traces the evolution from GIN to RUM to Extended RUM, showing how a single architectural idea—store more in the index to do less …
Cache Deep Dive III — Replacement Policies, Prefetch, and Single-Thread Memory Access
The previous article discussed the static structure of caches. This part moves into dynamic aspects: when a program continuously issues read requests,…