Checklists for software errors, setup, and tool workflows.

How to Create a package.json for Your npm Project

If you're starting a Node.js project, you'll need a package.json file. This ...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix VSCode Source Control Not Detecting Changes

You're working in Visual Studio Code, you edit a file, but the Source Control view shows no c...

Fix 'fatal: refusing to merge unrelated histories' in Git

You cloned a repository, made some commits locally, and now when you try to git pull...

Fix Cloudflare Wildcard Subdomain Origin Server Errors

You set up a wildcard DNS record in Cloudflare (e.g., *.example.com) pointing to you...

Docker Container Exits Immediately: Fix with Restart Policy

You start a Docker container, it runs for a second, then stops. No error messages, just a quick e...