Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You changed an SSL certificate in Cloudflare, but DNS changes aren't showing up. This is a co...

You open a file or run a task in VS Code and see Error: EACCES: permission denied, open ...

Fix Node.js Heap Out of Memory Error in PM2
If you're running a Node.js application under PM2 and seeing FATAL ERROR: CALL_AND_RETR...

Fix ERR_CERT_AUTHORITY_INVALID on Localhost
When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

How to Check Node Version Compatibility with a Package
You're about to install or update a package, and you see warnings like "requires Node.js ...

Fix VSCode Terminal Not Opening with Git Bash
You open Visual Studio Code, press Ctrl+` to bring up the terminal, and expect Git Bash. Instead,...