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 &#...

Fixing Nginx 502 Bad Gateway in Docker Networks

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

Fix Nginx 403 Forbidden: Permission Denied Errors

You're trying to access a site served by nginx, but you get a 403 Forbidden ...

Fix Docker Permission Denied Errors on Ubuntu

You start a Docker container with a mounted volume, and get a permission denied error when the co...

Fix Externally Managed Error: Create Virtual Environment

If you're on a modern Linux distribution and try to install a Python package with pip, you ma...

Fix 'Git Remote Origin Already Exists' When Updating Remote URL

You run a command like git remote add origin https://newurl.com/repo.git and get