Knowledge base for software setup, errors, and daily tool work.

Debugging Jest Tests in VS Code: Breakpoints Not Hit

You set a breakpoint in a Jest test file, start debugging, and the test runs to completion but th...

Fix VSCode IntelliSense Not Working for Rust

You open a Rust project in VSCode, start typing, and get no completions, hover info, or error hig...

How to Fix Nginx Upstream Connection Refused Error

If you're seeing upstream connection refused in your Nginx error logs, it usuall...

How to Fix Chrome Sync Not Working with Multiple Profiles

If you use multiple Chrome profiles—say, one for work and one for personal—sync can sometimes sto...

Cloudflare DNS Not Propagating for Subdomain: Fixes

You added a subdomain record in Cloudflare DNS, but it still resolves to the old IP or nothing at...

Git Push Rejected Non Fast Forward: How to Fix