Checklists for software errors, setup, and tool workflows.

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How to Fix a Detached HEAD with Git Reset --hard

You're working in Git, and suddenly you see a warning: You are in 'detached HEAD...

Fix Git Large File Push Permission Denied
When you run git push and get a permission denied error after adding a large file, t...

Update Git SSL Certificates to Fix 'unable to get local issuer'
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Handling Missing Peer Dependencies in pnpm Install
When you run pnpm install and see warnings about missing peer dependencies, your pro...

Fix Windows Security App Not Starting on Windows 11
You click the Windows Security icon or try to open it from Settings, but nothing happens. The app...

Fixing Nginx Upstream Connection Refused on Port 443
You see "upstream connection refused" in your Nginx error log when proxying requests to p...

Checklists for software errors, setup, and tool workflows.

Latest checklists

How to Fix a Detached HEAD with Git Reset --hard

Fix Git Large File Push Permission Denied

Update Git SSL Certificates to Fix 'unable to get local issuer'

Handling Missing Peer Dependencies in pnpm Install

Fix Windows Security App Not Starting on Windows 11

Fixing Nginx Upstream Connection Refused on Port 443

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