Knowledge base for software setup, errors, and daily tool work.

Fix VS Code Breakpoints Not Hit in Multi-Root Workspace

If you're using a multi-root workspace in VS Code and finding that breakpoints in some folder...

Fix Cloudflare 521 Error: DNS Configuration Problem

If you see a Cloudflare 521 error page, it means Cloudflare's servers are unable to connect t...

Node.js --max-old-space-size Setup Guide for Memory Issues

If your Node.js process crashes with a JavaScript heap out of memory error, you likely need to ad...

How to Fix Cloudflare SSL Full Strict Self-Signed Certificate Error

Recover Lost Changes After Git Detached HEAD

You've made several edits, then checked out an old commit or tag, and now Git says you're...

Node.js Heap Out of Memory in Production: Practical Fixes

You're running a Node.js application in production when it crashes with FATAL ERROR: In...