Checklists for software errors, setup, and tool workflows.

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How to Disable pip's Externally Managed Environment Warning

If you see the error error: externally-managed-environment when trying to install Py...

How to Fix a Detached HEAD in Git Using SourceTree

If you open SourceTree and see a message like “You are in ‘detached HEAD’ state,” it means your w...

Fix Firefox Secure Connection Failed Not Loading

If Firefox shows a “Secure Connection Failed” error and won’t let you load a site, it usually mea...

Git index.lock File Exists Even After Deleting: Fixes

You delete the .git/index.lock file, but Git still says it exists. This can happen d...

Fix Git Push Rejected Non Fast Forward Remote Error

You run git push and get: ! [rejected] main -> main (non-fast-forward) erro...

Chrome Startup Crash Due to Sandboxing: How to Fix
You open Chrome, it starts to load, then crashes before the window fully appears. This can happen...