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

Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix Nginx 502 Bad Gateway on Docker Ubuntu

You're running Nginx as a reverse proxy inside Docker on Ubuntu, and suddenly you see

Fix Git Push Rejected Non Fast Forward Error

When you try to push commits to a remote repository and see “rejected – non-fast-forward”, it mea...

Fix Git 'index.lock' File Exists Error on Linux

When working with Git on Linux, you might see an error like:

fatal: Unable to creat...