Workflow manuals for setup steps, repeatable tasks, and software operations.

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

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

fatal: Unable to create &#...

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

Symptom

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

Fix Cloudflare Wildcard Subdomain Page Rule Not Working

You set up a wildcard subdomain page rule in Cloudflare—like * .example.com/*—but it...

Docker Container Exits Immediately: No Error, Common Fixes

You run docker run and the container starts, then exits within a second. No error me...

How to Fix Windows Update Error 0x80070005 Permission Denied

When Windows Update fails with error 0x80070005 and the message "Permission denied," it u...

Fix Python Permission Denied When Installing Packages on Mac

If you see a 'permission denied' error when running pip install somepackage ...