Checklists for software errors, setup, and tool workflows.

Fix 'fatal: refusing to merge unrelated histories' in Git

You cloned a repository, made some commits locally, and now when you try to git pull...

Fix Git 'index.lock' Error in VS Code

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

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

Resolving Git Merge Conflicts in package-lock.json

If you work on a Node.js project with multiple contributors, you've likely seen a merge confl...

Fix ERR_CONNECTION_RESET Caused by Firewall Blocking Chrome

If you see ERR_CONNECTION_RESET in Chrome, it usually means something interrupte...

Nginx Upstream Connection Refused: Fixing localhost Errors

You set up an nginx reverse proxy to forward requests to a backend service on localhost, but ngin...