Checklists for software errors, setup, and tool workflows.

Fix Python venv Not Activating in VS Code Terminal

When you create a Python virtual environment but it doesn't activate in the VS Code terminal,...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

How to Fix Git Detached HEAD Error

You run git status and see "HEAD detached at" followed by a commit hash. Thi...

How to Fix Windows 11 Blue Screen After Update

If you're seeing a blue screen (BSOD) right after installing a Windows 11 update, you're ...

Fix npm run build Failed on Windows: Common Causes and Solutions

When you run npm run build on Windows and it fails, the error message can be cryptic...