Checklists for software errors, setup, and tool workflows.

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Latest checklists

When Nginx returns a 403 Forbidden or logs an error like ...

Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....

Nginx Redirect Loop: Common Causes and Fixes
You set up a redirect in nginx, but now your browser shows 'redirect loop' or 'too ma...

Fix VS Code Git Not Detecting Changes After .gitignore Update
After updating your .gitignore file, you might notice that VS Code's Git extensi...

Fix Cloudflare DNS Propagation Taking Too Long
You updated DNS records in Cloudflare but changes still aren't live hours later. This is frus...

npm package.json Not Found After npm init
You run npm init, answer the prompts, and then try to install a package or run a scr...