From the OpenReplay Blog
How Modern Apps Handle Roles and Permissions
Modern apps require ReBAC, ABAC, and policy-as-code tools like OpenFGA and OPA to handle fine-grained authorization beyond static role-based access control.
HTMX vs Alpine.js: When to Use Which
Compare HTMX and Alpine.js across server-driven updates and client-side UI state to choose the right tool for your server-rendered application.
Styling Valid and Invalid Form States with CSS
CSS pseudo-classes user-valid and user-invalid prevent premature errors. Combine them with has selectors and ARIA attributes for accessible styling.
5 Chrome Extensions for Accessibility Testing
Five Chrome extensions including axe DevTools, WAVE, and Accessibility Insights let developers catch WCAG violations during active development.
How to Type Environment Variables in TypeScript
Add type safety to TypeScript environment variables using import.meta.env for Vite and ProcessEnv for Node.js, with runtime validation via Zod.
Best Copilot Alternatives for 2026
Compare GitHub Copilot alternatives including Cursor, Windsurf, and Claude Code across agentic workflows, multi-file edits, and frontend team use cases.
How Middleware Works in Node.js
Trace how Express middleware executes in order, how next controls the chain, and how Express 5 handles async errors in the request lifecycle.
The Linux Cron Cheatsheet
Schedule Linux cron jobs with confidence using correct five-field syntax, distro-aware environment tips, and a full comparison of cron versus systemd timers.
A Tour of Handy Linux Tools for Modern Devs
Modern Linux CLI tools like ripgrep, fzf, delta, and lazygit solve real frontend developer problems with faster performance and clearer output.
A Quick Guide to Hugging Face for Developers
Add AI capabilities to web applications using Hugging Face Hub, Transformers, Inference Providers, and Inference Endpoints without training models from scratch.
WebGPU vs WebGL: Why the Industry Is Moving On
Compare WebGPU and WebGL across pipelines, bind groups, compute shaders, and WGSL to decide when migrating your rendering workflow makes sense.
How to Stop a Page From Scrolling While a Dialog Is Open
Stop background scrolling when a modal dialog is open using overflow hidden, overscroll behavior, and reliable iOS Safari scroll lock techniques.
The State of JavaScript IDEs in 2026
Compare VS Code, WebStorm, Cursor, and Zed on AI integration, security posture, and agent workflows to choose the right JavaScript IDE for your team.
What to Do When Your API Keys End Up in a Repo
Know exactly how to revoke exposed API keys, clean Git history, and prevent secrets from reaching GitHub repos using push protection and secret scanning.
TypeScript in Node: The Practical Setup
Set up TypeScript in Node.js using ESM, tsc compilation, and native type-stripping to build production APIs and scripts with modern tooling.
How to Build a Minimal REST API in Node.js
Build a minimal REST API in Node.js using Express 5 with JSON parsing, proper status codes, and centralized error handling in about 80 lines of code.
A Quick Guide to Loading Indicators in Web Apps
Build better loading UX by choosing spinners, skeletons, or optimistic UI and implementing React Suspense boundaries with Next.js App Router loading states.
A Beginner's Guide to SQL Injection (And How to Prevent It)
SQL injection attacks exploit unsafe database queries. See how parameterized queries and least-privilege database accounts keep your application secure.
Immutable State the Easy Way: Understanding Immer
Immer applies JavaScript proxies to handle immutable state updates. See how Redux Toolkit uses Immer and avoid common draft mutation pitfalls.
DNS Basics Every Developer Should Know
DNS resolution, record types, TTL behavior, DNSSEC, DoH, and HTTPS records explained so developers can debug production failures with confidence.
Release Workflows Made Easy With Changesets
Build reliable npm release workflows using Changesets, GitHub Actions, and OIDC trusted publishing to automate monorepo versioning and changelog generation.
How Passwordless Login Works Under the Hood
How passkeys use public-key cryptography, WebAuthn flows, and FIDO2 origin binding to deliver phishing-resistant passwordless authentication on the web.
Beneath Frameworks: Trust the Web's Primitives
Evaluate the Popover API, View Transitions, Navigation API, and CSS primitives as framework alternatives using Baseline to guide safe adoption.
A Beginner's Guide to Remote Functions in SvelteKit
SvelteKit remote functions replace manual API endpoints with type-safe server calls. Compare query, form, command, and prerender types to choose correctly.