Checklists for software errors, setup, and tool workflows.

Cloudflare Wildcard Subdomain Troubleshooting Checklist

When you set up a wildcard DNS record (e.g., *.example.com) in Cloudflare, subdomain...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Windows 11 WiFi No Internet Due to Antivirus Blocking

If your Windows 11 PC shows full WiFi bars but no internet access, your antivirus might be blocki...

How to Fix Python Dependency Conflicts in a Virtual Environment

You activate your virtual environment, run pip install, and get an error about conflicting depend...

How to Fix Edge Sync Stuck on Preparing Sync

You open Microsoft Edge, click your profile, and see 'Preparing sync' — but it never fini...

Fix DNS Probe Finished NXDOMAIN on Custom DNS Server

If you see “DNS PROBE FINISHED NXDOMAIN” in Chrome or another browser while using a custom DNS se...