Notes

Deploying on Zeabur but seeing errors like exec format error, no such file or directory, or symbol not found? This guide explains the real root causes—CPU architecture and libc mismatches—and provides correct Dockerfile and build examples to ensure your app runs smoothly on Alpine and other environments.

Encountered Cannot find module '@workflow-worlds/redis' when deploying a Vercel Workflow DevKit app using Nitro and Docker? This guide explains the root cause and shows how adjusting the WORKDIR fixes the issue. Includes full Dockerfile example and detailed setup instructions.

Learn the key differences between localStorage, sessionStorage, and cookies — a common front-end interview topic. This guide explains practical use cases, storage limits, and security considerations, along with insights into CSRF protection, SameSite attributes, and Content Security Policy (CSP).

This article shows how to combine React forwardRef with TypeScript generics to build a reusable, type‑safe Table component while preserving full type inference using type assertions.

Ever run into .gitignore not working or Git ignoring case-sensitive filename changes? This article explains why these issues happen and shows three easy fixes—clearing cache, enabling case tracking, and renaming files properly with Git commands.

Learn how to implement Sign-In with Ethereum (SIWE) authentication using React and Go. This guide covers frontend nonce signing, backend signature verification, and JWT token generation — the complete Web3 login flow for integrating Ethereum wallet login into your app.

Learn how to reuse the same function across React client and server (RSC) environments with conditional exports using react-server and server-only. This guide walks you through a real example showing how to safely configure headers and share logic between client and server in TypeScript.

Learn how to use lsof on macOS to check which TCP ports are in use and safely kill processes with the kill command. A practical guide for developers to fix port already in use errors.

Learn how to manage Node.js and Bun projects efficiently using PNPM. Explore powerful features like Workspaces, Catalogs, and Aliases to streamline package management and improve your development workflow.