Checklists for software errors, setup, and tool workflows.

Fix Nginx 'Permission Denied' Upstream Errors

When Nginx logs permission denied while connecting to an upstream (e.g., a Unix sock...

Fix VS Code Terminal Not Working After Update

After a VS Code update, the integrated terminal may fail to start, show a blank window, or displa...

Fix VS Code Terminal Not Opening with Node

You open VS Code, try to start the integrated terminal, and it either doesn't appear, flashes...

How to Fix Python Dependency Conflicts When Installing Packages

You run pip install some-package and get a wall of text about conflicting dependenci...

How to Fix Cloudflare 521 Error Due to Proxy Issues

If you see a Cloudflare 521 error, the message usually says something like “Web server is down.” ...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...