Checklists for software errors, setup, and tool workflows.

How to Fix VS Code IntelliSense Not Working

If you're seeing no suggestions, missing completions, or a spinning 'Loading...' in V...

How to Fix Cloudflare Error 522 Connection Timed Out

Error 522 appears when Cloudflare can connect to your origin server but the server doesn't re...

Fix Nginx Configuration Test Failure for Upstream Directive

When you run nginx -t and get an error involving the upstream directive...

Fix Nginx Configuration Test Failure from Rewrite Rules

You run nginx -t and get an error. The log points to a rewrite rule. This is common ...

Fix Virtual Environment Not Activating in Terminal

Why Your Virtual Environment Won't Activate

You open a terminal, navigate to your pro...

Debugging Jest Tests in VS Code: Breakpoints Not Hit

You set a breakpoint in a Jest test file, start debugging, and the test runs to completion but th...