Checklists for software errors, setup, and tool workflows.

How to Fix Cloudflare 521 Error with Firewall Settings

If you see a 521 Web Server Is Down error when visiting your site through Cloudf...

Fix Cloudflare SSL Full Strict Mixed Content Warning

You've enabled Cloudflare SSL/TLS encryption mode to Full (strict) and now see mixed content ...

Fix Git Authentication Failed in VS Code on Linux

You're working in VS Code on Linux, try to push or pull, and get a popup: "Git authentica...

Handling Python Requests Timeout on Slow Networks

When your Python script using the requests library hangs or throws a timeout excepti...

Fix VS Code Source Control Not Detecting Changes in Subfolder

You open VS Code, see changes in the root folder, but the Source Control panel shows nothing for ...

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules

You run npm install or npm start and get something like:

...