Checklists for software errors, setup, and tool workflows.

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How to Fix Git Unrelated Histories Error When Merging Branches

You try to merge two branches, and Git stops with: fatal: refusing to merge unrelated histo...

Docker Container Exits Immediately After Entrypoint
You run a Docker container and it stops within seconds. The logs show your entrypoint script ran,...

Git index.lock File Exists: Quick Fix Checklist
You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...

Fix Chrome Black Screen During Videos: Hardware Acceleration
If you're watching a video in Chrome and the screen goes black (but audio continues), hardwar...

Fix 'Externally Managed Environment' Error on Linux
If you're on a modern Linux distribution (Ubuntu 23.04+, Debian 12+, Fedora 38+, etc.) and ge...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer
When you run git clone or git pull and see an error like "S...

Checklists for software errors, setup, and tool workflows.

Latest checklists

How to Fix Git Unrelated Histories Error When Merging Branches

Docker Container Exits Immediately After Entrypoint

Git index.lock File Exists: Quick Fix Checklist

Fix Chrome Black Screen During Videos: Hardware Acceleration

Fix 'Externally Managed Environment' Error on Linux

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

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